{"id":2406,"date":"2026-01-13T09:37:50","date_gmt":"2026-01-13T09:37:50","guid":{"rendered":"https:\/\/hycuttingtools.com\/?post_type=product&#038;p=2406"},"modified":"2026-09-19T11:09:36","modified_gmt":"2026-09-19T11:09:36","slug":"mgr-series-solid-carbide-micro-internal-grooving-bar","status":"publish","type":"product","link":"https:\/\/hycuttingtools.com\/pt\/produto\/mgr-series-solid-carbide-micro-internal-grooving-bar\/","title":{"rendered":"MGR Series Solid Carbide Micro Internal Grooving Bar for Small Bore Machining"},"content":{"rendered":"<div class=\"hy-tab-wrap hy-overview-final\" style=\"width: 100%; max-width: 1140px; margin: 0 auto; padding: 0 16px; background: #ffffff;\">\n<p><!-- ===================================================== SECTION 1 \u2014 PRODUCT OVERVIEW ===================================================== --><\/p>\n<section class=\"hy-tab-section\">\n<h2 class=\"hy-tab-main-title\">MGR Carbide Micro Internal Grooving Bar Overview<\/h2>\n<section class=\"hy-tab-section\">\n<p class=\"hy-tab-intro\" style=\"margin: 0 0 12px; color: #475569; font-size: 14px; line-height: 1.7;\">MGR Series solid carbide micro internal grooving bars are designed for machining precision grooves and narrow recesses inside small-diameter bores. The standard range covers actual cutting diameters from \u00d82.9 mm to \u00d87.9 mm, with groove widths from 0.5 mm to 3.0 mm.<\/p>\n<p style=\"margin: 0; color: #475569; font-size: 14px; line-height: 1.7;\">The one-piece fine-grain solid carbide construction provides the rigidity required for small-bore CNC turning. Precision-ground cutting geometry helps maintain groove width, groove depth and surface quality when machining compact precision components.<\/p>\n<\/section>\n<section class=\"hy-tab-section\">\n<h3 class=\"hy-section-title\">Key Product Features<\/h3>\n<div style=\"display: flex; flex-wrap: wrap; gap: 10px;\">\n<div style=\"flex: 1 1 calc(50% - 10px); min-width: 260px; padding: 16px 18px; background: #f8fafc; border-radius: 5px;\"><strong style=\"display: block; margin: 0 0 6px; color: #0f766e; font-size: 15px;\">Small-Bore Grooving<\/strong><span style=\"display: block; color: #475569; font-size: 14px; line-height: 1.65;\">Five standard size classes cover actual cutting diameters of \u00d82.9, \u00d83.9, \u00d84.9, \u00d85.9 and \u00d87.9 mm.<\/span><\/div>\n<div style=\"flex: 1 1 calc(50% - 10px); min-width: 260px; padding: 16px 18px; background: #f8fafc; border-radius: 5px;\"><strong style=\"display: block; margin: 0 0 6px; color: #0f766e; font-size: 15px;\">Precision Groove Geometry<\/strong><span style=\"display: block; color: #475569; font-size: 14px; line-height: 1.65;\">Standard groove widths range from 0.5 mm to 3.0 mm, with available groove depths from 0.8 mm to 3.0 mm.<\/span><\/div>\n<div style=\"flex: 1 1 calc(50% - 10px); min-width: 260px; padding: 16px 18px; background: #f8fafc; border-radius: 5px;\"><strong style=\"display: block; margin: 0 0 6px; color: #0f766e; font-size: 15px;\">Solid Carbide Rigidity<\/strong><span style=\"display: block; color: #475569; font-size: 14px; line-height: 1.65;\">Fine-grain solid carbide construction helps reduce tool deflection and supports stable cutting in restricted internal spaces.<\/span><\/div>\n<div style=\"flex: 1 1 calc(50% - 10px); min-width: 260px; padding: 16px 18px; background: #f8fafc; border-radius: 5px;\"><strong style=\"display: block; margin: 0 0 6px; color: #0f766e; font-size: 15px;\">Multiple Reach Options<\/strong><span style=\"display: block; color: #475569; font-size: 14px; line-height: 1.65;\">Clearance lengths of 10, 15 and 20 mm support grooves located at different depths inside small bores.<\/span><\/div>\n<\/div>\n<\/section>\n<section class=\"hy-tab-section\">\n<h3 class=\"hy-section-title\">Aplica\u00e7\u00f5es t\u00edpicas<\/h3>\n<div class=\"hy-mobile-table-scroll\" style=\"display: block; width: 100%; max-width: 100%; overflow-x: auto; border: 1px solid #e2e8f0; border-radius: 6px;\">\n<table style=\"width: max(100%,650px); min-width: 650px; margin: 0; border-collapse: collapse; color: #1e293b; font-size: 14px;\">\n<thead>\n<tr style=\"background: #EEF8F1;\">\n<th style=\"padding: 12px 16px; border-bottom: 2px solid #cbd5e1; text-align: left;\">Aplicativo<\/th>\n<th style=\"padding: 12px 16px; border-bottom: 2px solid #cbd5e1; text-align: left;\">Machining Requirement<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; font-weight: 600; color: #0f766e;\">Precision Internal Grooves<\/td>\n<td style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #475569;\">Machining controlled groove widths and depths inside small-diameter bores.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; font-weight: 600; color: #0f766e;\">Internal Relief Grooves<\/td>\n<td style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #475569;\">Producing narrow relief features close to internal shoulders or functional surfaces.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; font-weight: 600; color: #0f766e;\">Retaining-Ring Grooves<\/td>\n<td style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #475569;\">Machining narrow internal grooves when the specified width, depth and corner geometry match the selected tool.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px 16px; font-weight: 600; color: #0f766e;\">Miniature Precision Components<\/td>\n<td style=\"padding: 12px 16px; color: #475569;\">Suitable for sleeves, bushings, hydraulic parts, instrument components and precision-turned parts.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n<section class=\"hy-tab-section\">\n<h3 class=\"hy-section-title\"><img data-srcset=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/micro-internal-tooling-machining-methods.png 1442w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/micro-internal-tooling-machining-methods-300x227.png 300w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/micro-internal-tooling-machining-methods-1024x775.png 1024w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/micro-internal-tooling-machining-methods-768x581.png 768w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/micro-internal-tooling-machining-methods-16x12.png 16w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/micro-internal-tooling-machining-methods-1000x757.png 1000w\" decoding=\"async\" data-src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/micro-internal-tooling-machining-methods.png\" class=\"aligncenter wp-image-8666 size-full lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" alt=\"Micro internal tooling machining methods for grooving, threading, boring and profile turning\"   title=\"\"  sizes=\"(max-width: 1442px) 100vw, 1442px\" \/><noscript><img decoding=\"async\" class=\"aligncenter wp-image-8666 size-full\" src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/micro-internal-tooling-machining-methods.png\" alt=\"Micro internal tooling machining methods for grooving, threading, boring and profile turning\" width=\"1442\" height=\"1091\" title=\"\" srcset=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/micro-internal-tooling-machining-methods.png 1442w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/micro-internal-tooling-machining-methods-300x227.png 300w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/micro-internal-tooling-machining-methods-1024x775.png 1024w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/micro-internal-tooling-machining-methods-768x581.png 768w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/micro-internal-tooling-machining-methods-16x12.png 16w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/micro-internal-tooling-machining-methods-1000x757.png 1000w\" sizes=\"(max-width: 1442px) 100vw, 1442px\" \/><\/noscript><\/h3>\n<h3 class=\"hy-section-title\">Recommended Workpiece Materials<\/h3>\n<div style=\"display: flex; flex-wrap: wrap; gap: 10px;\">\n<div style=\"flex: 1 1 220px; padding: 15px 16px; background: #EEF8F1; border-radius: 5px;\"><strong style=\"display: block; margin-bottom: 5px; color: #0f766e; font-size: 14px;\">Best Suitability<\/strong><br \/>\n<span style=\"color: #475569; font-size: 13px; line-height: 1.65;\">Carbon Steel, Alloy Steel, Stainless Steel and Copper Alloys<\/span><\/div>\n<div style=\"flex: 1 1 220px; padding: 15px 16px; background: #f8fafc; border-radius: 5px;\"><strong style=\"display: block; margin-bottom: 5px; color: #0f766e; font-size: 14px;\">Good Suitability<\/strong><br \/>\n<span style=\"color: #475569; font-size: 13px; line-height: 1.65;\">Pre-Hardened Steel, Hardened Steel Below 48 HRC, Cast Iron and Titanium Alloys<\/span><\/div>\n<\/div>\n<p style=\"margin: 10px 0 0; color: #64748b; font-size: 13px; line-height: 1.6;\">Coating, cutting-edge preparation and machining parameters should be selected according to workpiece material, groove dimensions, tool overhang and machine rigidity.<img data-srcset=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/application-material-MIR-micro-boring-bars.png 1374w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/application-material-MIR-micro-boring-bars-300x250.png 300w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/application-material-MIR-micro-boring-bars-1024x853.png 1024w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/application-material-MIR-micro-boring-bars-768x640.png 768w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/application-material-MIR-micro-boring-bars-14x12.png 14w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/application-material-MIR-micro-boring-bars-1000x833.png 1000w\" decoding=\"async\" data-src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/application-material-MIR-micro-boring-bars.png\" class=\"aligncenter wp-image-8646 size-full lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" alt=\"application material MIR micro boring bars\"   title=\"\"  sizes=\"(max-width: 1374px) 100vw, 1374px\" \/><noscript><img decoding=\"async\" class=\"aligncenter wp-image-8646 size-full\" src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/application-material-MIR-micro-boring-bars.png\" alt=\"application material MIR micro boring bars\" width=\"1374\" height=\"1145\" title=\"\" srcset=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/application-material-MIR-micro-boring-bars.png 1374w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/application-material-MIR-micro-boring-bars-300x250.png 300w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/application-material-MIR-micro-boring-bars-1024x853.png 1024w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/application-material-MIR-micro-boring-bars-768x640.png 768w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/application-material-MIR-micro-boring-bars-14x12.png 14w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/application-material-MIR-micro-boring-bars-1000x833.png 1000w\" sizes=\"(max-width: 1374px) 100vw, 1374px\" \/><\/noscript><\/p>\n<\/section>\n<section class=\"hy-tab-section\">\n<h3 class=\"hy-section-title\">Compatibilidade de m\u00e1quinas<\/h3>\n<div style=\"display: flex; flex-wrap: wrap; gap: 8px;\">\n<div style=\"flex: 1 1 220px; padding: 13px 15px; background: #f8fafc; border-radius: 4px; color: #475569; font-size: 14px;\">CNC Turning Centers<\/div>\n<div style=\"flex: 1 1 220px; padding: 13px 15px; background: #f8fafc; border-radius: 4px; color: #475569; font-size: 14px;\">Swiss-Type CNC Lathes<\/div>\n<div style=\"flex: 1 1 220px; padding: 13px 15px; background: #f8fafc; border-radius: 4px; color: #475569; font-size: 14px;\">Small-Parts Turning Machines<\/div>\n<div style=\"flex: 1 1 220px; padding: 13px 15px; background: #f8fafc; border-radius: 4px; color: #475569; font-size: 14px;\">Precision Automatic Lathes<\/div>\n<\/div>\n<div><\/div>\n<div>Micro internal tooling selection guide covering boring, grooving, threading, profiling and face-grooving tools for small-diameter machining.<\/div>\n<\/section>\n<\/section>\n<\/div>\n<div><\/div>\n<div>\n<p><img data-srcset=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-2pcs.png 1190w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-2pcs-293x300.png 293w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-2pcs-1000x1024.png 1000w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-2pcs-768x786.png 768w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-2pcs-12x12.png 12w\" decoding=\"async\" data-src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-2pcs.png\" class=\"aligncenter wp-image-8705 size-full lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" alt=\"MGR Series Solid Carbide Micro Internal Grooving Bar 2pcs\"   title=\"\"  sizes=\"(max-width: 1190px) 100vw, 1190px\" \/><noscript><img decoding=\"async\" class=\"aligncenter wp-image-8705 size-full\" src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-2pcs.png\" alt=\"MGR Series Solid Carbide Micro Internal Grooving Bar 2pcs\" width=\"1190\" height=\"1218\" title=\"\" srcset=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-2pcs.png 1190w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-2pcs-293x300.png 293w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-2pcs-1000x1024.png 1000w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-2pcs-768x786.png 768w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-2pcs-12x12.png 12w\" sizes=\"(max-width: 1190px) 100vw, 1190px\" \/><\/noscript> <img data-srcset=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-real-photo.png 1178w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-real-photo-300x300.png 300w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-real-photo-1024x1022.png 1024w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-real-photo-150x150.png 150w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-real-photo-768x767.png 768w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-real-photo-12x12.png 12w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-real-photo-800x800.png 800w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-real-photo-1000x998.png 1000w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-real-photo-100x100.png 100w\" decoding=\"async\" data-src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-real-photo.png\" class=\"aligncenter wp-image-8706 size-full lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" alt=\"MGR Series Solid Carbide Micro Internal Grooving Bar real photo\"   title=\"\"  sizes=\"(max-width: 1178px) 100vw, 1178px\" \/><noscript><img decoding=\"async\" class=\"aligncenter wp-image-8706 size-full\" src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-real-photo.png\" alt=\"MGR Series Solid Carbide Micro Internal Grooving Bar real photo\" width=\"1178\" height=\"1176\" title=\"\" srcset=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-real-photo.png 1178w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-real-photo-300x300.png 300w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-real-photo-1024x1022.png 1024w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-real-photo-150x150.png 150w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-real-photo-768x767.png 768w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-real-photo-12x12.png 12w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-real-photo-800x800.png 800w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-real-photo-1000x998.png 1000w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-real-photo-100x100.png 100w\" sizes=\"(max-width: 1178px) 100vw, 1178px\" \/><\/noscript> <img data-srcset=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-photo.png 1188w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-photo-300x278.png 300w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-photo-1024x950.png 1024w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-photo-768x712.png 768w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-photo-13x12.png 13w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-photo-1000x928.png 1000w\" decoding=\"async\" data-src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-photo.png\" class=\"aligncenter wp-image-8707 size-full lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" alt=\"MGR Series Solid Carbide Micro Internal Grooving Bar photo\"   title=\"\"  sizes=\"(max-width: 1188px) 100vw, 1188px\" \/><noscript><img decoding=\"async\" class=\"aligncenter wp-image-8707 size-full\" src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-photo.png\" alt=\"MGR Series Solid Carbide Micro Internal Grooving Bar photo\" width=\"1188\" height=\"1102\" title=\"\" srcset=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-photo.png 1188w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-photo-300x278.png 300w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-photo-1024x950.png 1024w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-photo-768x712.png 768w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-photo-13x12.png 13w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-photo-1000x928.png 1000w\" sizes=\"(max-width: 1188px) 100vw, 1188px\" \/><\/noscript><img data-srcset=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/micro-internal-boring-tool-series.png 1378w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/micro-internal-boring-tool-series-300x249.png 300w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/micro-internal-boring-tool-series-1024x849.png 1024w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/micro-internal-boring-tool-series-768x636.png 768w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/micro-internal-boring-tool-series-14x12.png 14w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/micro-internal-boring-tool-series-1000x829.png 1000w\" decoding=\"async\" data-src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/micro-internal-boring-tool-series.png\" class=\"aligncenter wp-image-8685 size-full lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" alt=\"micro internal boring tool series\"   title=\"\"  sizes=\"(max-width: 1378px) 100vw, 1378px\" \/><noscript><img decoding=\"async\" class=\"aligncenter wp-image-8685 size-full\" src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/micro-internal-boring-tool-series.png\" alt=\"micro internal boring tool series\" width=\"1378\" height=\"1142\" title=\"\" srcset=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/micro-internal-boring-tool-series.png 1378w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/micro-internal-boring-tool-series-300x249.png 300w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/micro-internal-boring-tool-series-1024x849.png 1024w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/micro-internal-boring-tool-series-768x636.png 768w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/micro-internal-boring-tool-series-14x12.png 14w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/micro-internal-boring-tool-series-1000x829.png 1000w\" sizes=\"(max-width: 1378px) 100vw, 1378px\" \/><\/noscript><img data-srcset=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/Micro-Internal-Tooling-Selection-Guide.webp 1145w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/Micro-Internal-Tooling-Selection-Guide-250x300.webp 250w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/Micro-Internal-Tooling-Selection-Guide-854x1024.webp 854w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/Micro-Internal-Tooling-Selection-Guide-768x921.webp 768w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/Micro-Internal-Tooling-Selection-Guide-10x12.webp 10w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/Micro-Internal-Tooling-Selection-Guide-1000x1199.webp 1000w\" decoding=\"async\" data-src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/Micro-Internal-Tooling-Selection-Guide.webp\" class=\"wp-image-8700 size-full lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" alt=\"Micro internal tooling selection guide for small-diameter boring, grooving, threading and profiling\"   title=\"\"  sizes=\"(max-width: 1145px) 100vw, 1145px\" \/><noscript><img decoding=\"async\" class=\"wp-image-8700 size-full\" src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/Micro-Internal-Tooling-Selection-Guide.webp\" alt=\"Micro internal tooling selection guide for small-diameter boring, grooving, threading and profiling\" width=\"1145\" height=\"1373\" title=\"\" srcset=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/Micro-Internal-Tooling-Selection-Guide.webp 1145w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/Micro-Internal-Tooling-Selection-Guide-250x300.webp 250w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/Micro-Internal-Tooling-Selection-Guide-854x1024.webp 854w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/Micro-Internal-Tooling-Selection-Guide-768x921.webp 768w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/Micro-Internal-Tooling-Selection-Guide-10x12.webp 10w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/Micro-Internal-Tooling-Selection-Guide-1000x1199.webp 1000w\" sizes=\"(max-width: 1145px) 100vw, 1145px\" \/><\/noscript><\/p>\n<p><!-- PRODUCT VIDEO --><\/p>\n<section class=\"hy-tab-section\">\n<h3 class=\"hy-section-title\">Product Video<\/h3>\n<div style=\"width: 100%; max-width: 720px; margin: 0 auto; background: #ffffff; overflow: hidden;\">\n<p><video class=\"lazyload\" style=\"display: block; width: 100%; height: auto; margin: 0;\" title=\"Solid Carbide Micro Internal Boring Bars Product Video\" preload=\"metadata\" controls=\"controls\" width=\"300\" height=\"150\"><source src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/internal-micro-boring-bars-product-video.mp4\" type=\"video\/mp4\" \/>Your browser does not support the HTML5 video element.&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/video><\/p>\n<\/div>\n<p style=\"margin: 10px 0 0; color: #64748b; font-size: 13px; line-height: 1.6; text-align: center;\">Product details and configurations of HY solid carbide micro internal tooling.<\/p>\n<\/section>\n<\/div>\n<div class=\"hy-tab-wrap hy-overview-final\" style=\"width: 100%; max-width: 1140px; margin: 0 auto; padding: 0; background: #ffffff; color: #1e293b; font-family: Inter,Arial,sans-serif;\">\n<section class=\"hy-tab-section\" style=\"padding: 18px 20px; background: #EEF8F1; border-radius: 6px;\">\n<h3 class=\"hy-section-title\">Selection Recommendation<\/h3>\n<p style=\"margin: 0; color: #475569; font-size: 14px; line-height: 1.7;\">Select the MGR bar according to the bore diameter, groove width B, groove depth Q and groove position. Use the largest possible shank and the shortest practical clearance length to improve rigidity. Confirm that the tool body has sufficient clearance throughout the cutting and retraction path before machining.<\/p>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"<div style=\"font-family: Arial,Helvetica,sans-serif; color: #2f2938; line-height: 1.65; box-sizing: border-box;\">\n<div style=\"display: block !important; height: auto !important; min-height: 0 !important; margin: 6px 0 12px 0 !important; padding: 0 !important; color: #475569 !important; font-size: 15px !important; font-weight: 400 !important; line-height: 1.5 !important;\">Solid carbide MGR micro internal grooving bars for machining precision grooves and narrow recesses in small-diameter bores. Standard groove widths from 0.5 to 3.0 mm are available, with custom dimensions, OEM marking and private-label support for distributors.<\/div>\n<div style=\"display: block !important; width: 100% !important; height: auto !important; min-height: 0 !important; margin: 0 0 10px 0 !important; padding: 5px 0 !important; border-top: 1px solid #cbd5e1 !important; border-bottom: 1px solid #cbd5e1 !important; box-sizing: border-box !important;\">\n<div style=\"display: flex !important; justify-content: space-between !important; align-items: flex-start !important; width: 100% !important; height: auto !important; min-height: 0 !important; margin: 0 !important; padding: 5px 0 !important; border-bottom: 1px solid #f1f5f9 !important; box-sizing: border-box !important;\">\n<div style=\"display: flex !important; flex-direction: column !important; justify-content: flex-start !important; align-items: flex-start !important; gap: 3px !important; width: 48% !important; height: auto !important; min-height: 0 !important; margin: 0 !important; padding: 0 !important; box-sizing: border-box !important;\"><span style=\"display: block !important; flex: none !important; margin: 0 !important; padding: 0 !important; color: #64748b !important; font-size: 14px !important; font-weight: 600 !important; line-height: 1.3 !important;\">Substrato:<\/span><span style=\"display: block !important; flex: none !important; margin: 0 !important; padding: 0 !important; color: #1e293b !important; font-size: 15px !important; font-weight: 700 !important; line-height: 1.4 !important; overflow-wrap: anywhere !important;\">Fine-Grain Solid Carbide<\/span><\/div>\n<div style=\"display: flex !important; flex-direction: column !important; justify-content: flex-start !important; align-items: flex-start !important; gap: 3px !important; width: 48% !important; height: auto !important; min-height: 0 !important; margin: 0 !important; padding: 0 !important; box-sizing: border-box !important;\"><span style=\"display: block !important; flex: none !important; margin: 0 !important; padding: 0 !important; color: #64748b !important; font-size: 14px !important; font-weight: 600 !important; line-height: 1.3 !important;\">Tipo de ferramenta:<\/span><span style=\"display: block !important; flex: none !important; margin: 0 !important; padding: 0 !important; color: #1e293b !important; font-size: 15px !important; font-weight: 700 !important; line-height: 1.4 !important; overflow-wrap: anywhere !important;\">Micro Internal Grooving Bar<\/span><\/div>\n<\/div>\n<div style=\"display: flex !important; justify-content: space-between !important; align-items: flex-start !important; width: 100% !important; height: auto !important; min-height: 0 !important; margin: 0 !important; padding: 5px 0 !important; border-bottom: 1px solid #f1f5f9 !important; box-sizing: border-box !important;\">\n<div style=\"display: flex !important; flex-direction: column !important; justify-content: flex-start !important; align-items: flex-start !important; gap: 3px !important; width: 48% !important; height: auto !important; min-height: 0 !important; margin: 0 !important; padding: 0 !important; box-sizing: border-box !important;\"><span style=\"display: block !important; flex: none !important; margin: 0 !important; padding: 0 !important; color: #64748b !important; font-size: 14px !important; font-weight: 600 !important; line-height: 1.3 !important;\">S\u00e9rie:<\/span><span style=\"display: block !important; flex: none !important; margin: 0 !important; padding: 0 !important; color: #1e293b !important; font-size: 15px !important; font-weight: 700 !important; line-height: 1.4 !important; overflow-wrap: anywhere !important;\">MGR<\/span><\/div>\n<div style=\"display: flex !important; flex-direction: column !important; justify-content: flex-start !important; align-items: flex-start !important; gap: 3px !important; width: 48% !important; height: auto !important; min-height: 0 !important; margin: 0 !important; padding: 0 !important; box-sizing: border-box !important;\"><span style=\"display: block !important; flex: none !important; margin: 0 !important; padding: 0 !important; color: #64748b !important; font-size: 14px !important; font-weight: 600 !important; line-height: 1.3 !important;\">Groove Width:<\/span><span style=\"display: block !important; flex: none !important; margin: 0 !important; padding: 0 !important; color: #1e293b !important; font-size: 15px !important; font-weight: 700 !important; line-height: 1.4 !important; overflow-wrap: anywhere !important;\">0.5\u20133.0 mm<\/span><\/div>\n<\/div>\n<div style=\"display: flex !important; justify-content: space-between !important; align-items: flex-start !important; width: 100% !important; height: auto !important; min-height: 0 !important; margin: 0 !important; padding: 5px 0 !important; border-bottom: 1px solid #f1f5f9 !important; box-sizing: border-box !important;\">\n<div style=\"display: flex !important; flex-direction: column !important; justify-content: flex-start !important; align-items: flex-start !important; gap: 3px !important; width: 48% !important; height: auto !important; min-height: 0 !important; margin: 0 !important; padding: 0 !important; box-sizing: border-box !important;\"><span style=\"display: block !important; flex: none !important; margin: 0 !important; padding: 0 !important; color: #64748b !important; font-size: 14px !important; font-weight: 600 !important; line-height: 1.3 !important;\">Di\u00e2metro de corte:<\/span><span style=\"display: block !important; flex: none !important; margin: 0 !important; padding: 0 !important; color: #1e293b !important; font-size: 15px !important; font-weight: 700 !important; line-height: 1.4 !important; overflow-wrap: anywhere !important;\">\u00d82.9\u2013\u00d87.9 mm<\/span><\/div>\n<div style=\"display: flex !important; flex-direction: column !important; justify-content: flex-start !important; align-items: flex-start !important; gap: 3px !important; width: 48% !important; height: auto !important; min-height: 0 !important; margin: 0 !important; padding: 0 !important; box-sizing: border-box !important;\"><span style=\"display: block !important; flex: none !important; margin: 0 !important; padding: 0 !important; color: #64748b !important; font-size: 14px !important; font-weight: 600 !important; line-height: 1.3 !important;\">Di\u00e2metro da haste:<\/span><span style=\"display: block !important; flex: none !important; margin: 0 !important; padding: 0 !important; color: #1e293b !important; font-size: 15px !important; font-weight: 700 !important; line-height: 1.4 !important; overflow-wrap: anywhere !important;\">\u00d84 \/ \u00d85 \/ \u00d86 \/ \u00d88 mm<\/span><\/div>\n<\/div>\n<div style=\"display: flex !important; justify-content: space-between !important; align-items: flex-start !important; width: 100% !important; height: auto !important; min-height: 0 !important; margin: 0 !important; padding: 5px 0 !important; box-sizing: border-box !important;\">\n<div style=\"display: flex !important; flex-direction: column !important; justify-content: flex-start !important; align-items: flex-start !important; gap: 3px !important; width: 48% !important; height: auto !important; min-height: 0 !important; margin: 0 !important; padding: 0 !important; box-sizing: border-box !important;\"><span style=\"display: block !important; flex: none !important; margin: 0 !important; padding: 0 !important; color: #64748b !important; font-size: 14px !important; font-weight: 600 !important; line-height: 1.3 !important;\">Clearance Length:<\/span><span style=\"display: block !important; flex: none !important; margin: 0 !important; padding: 0 !important; color: #1e293b !important; font-size: 15px !important; font-weight: 700 !important; line-height: 1.4 !important; overflow-wrap: anywhere !important;\">10 \/ 15 \/ 20 mm<\/span><\/div>\n<div style=\"display: flex !important; flex-direction: column !important; justify-content: flex-start !important; align-items: flex-start !important; gap: 3px !important; width: 48% !important; height: auto !important; min-height: 0 !important; margin: 0 !important; padding: 0 !important; box-sizing: border-box !important;\"><span style=\"display: block !important; flex: none !important; margin: 0 !important; padding: 0 !important; color: #64748b !important; font-size: 14px !important; font-weight: 600 !important; line-height: 1.3 !important;\">Custom Options:<\/span><span style=\"display: block !important; flex: none !important; margin: 0 !important; padding: 0 !important; color: #1e293b !important; font-size: 15px !important; font-weight: 700 !important; line-height: 1.4 !important; overflow-wrap: anywhere !important;\">Dimensions \/ Groove Geometry \/ Marking<\/span><\/div>\n<\/div>\n<\/div>\n<div style=\"display: flex !important; flex-wrap: wrap !important; gap: 6px !important; width: 100% !important; margin: 0 !important; padding: 0 !important; box-sizing: border-box !important;\">\n<div style=\"flex: 1 1 105px !important; min-width: 0 !important; margin: 0 !important; padding: 8px 9px !important; background: #EEF8F1 !important; border-radius: 4px !important; box-sizing: border-box !important;\"><span style=\"display: block !important; margin: 0 0 2px !important; color: #0f766e !important; font-size: 12px !important; font-weight: 700 !important; line-height: 1.3 !important;\">Standard Dispatch<\/span><span style=\"display: block !important; color: #1e293b !important; font-size: 13px !important; font-weight: 700 !important; line-height: 1.35 !important;\">1\u20133 Working Days<\/span><\/div>\n<div style=\"flex: 1 1 105px !important; min-width: 0 !important; margin: 0 !important; padding: 8px 9px !important; background: #EEF8F1 !important; border-radius: 4px !important; box-sizing: border-box !important;\"><span style=\"display: block !important; margin: 0 0 2px !important; color: #0f766e !important; font-size: 12px !important; font-weight: 700 !important; line-height: 1.3 !important;\">OEM &amp; Custom<\/span><span style=\"display: block !important; color: #1e293b !important; font-size: 13px !important; font-weight: 700 !important; line-height: 1.35 !important;\">Drawings \/ Samples<\/span><\/div>\n<div style=\"flex: 1 1 105px !important; min-width: 0 !important; margin: 0 !important; padding: 8px 9px !important; background: #EEF8F1 !important; border-radius: 4px !important; box-sizing: border-box !important;\"><span style=\"display: block !important; margin: 0 0 2px !important; color: #0f766e !important; font-size: 12px !important; font-weight: 700 !important; line-height: 1.3 !important;\">Minimum Order<\/span><span style=\"display: block !important; color: #1e293b !important; font-size: 13px !important; font-weight: 700 !important; line-height: 1.35 !important;\">MOQ 10 Pieces<\/span><\/div>\n<\/div>\n<\/div>","protected":false},"featured_media":8708,"template":"","meta":{"_acf_changed":false,"googlesitekit_rrm_CAowkrPfCw:productID":"","_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"default","_kad_post_title":"","_kad_post_layout":"default","_kad_post_sidebar_id":"","_kad_post_content_style":"default","_kad_post_vertical_padding":"default","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":""},"product_brand":[],"product_cat":[2615,3684],"product_tag":[4942,2655,4953,4952],"class_list":["post-2406","product","type-product","status-publish","has-post-thumbnail","product_cat-micro-internal-tooling","product_cat-micro-internal-grooving-bars","product_tag-grooving","product_tag-micro-diameter","product_tag-micro-grooving-bar","product_tag-small-bore-machining","pa_workpiece-material-carbon-alloy-steel","pa_workpiece-material-cast-iron","pa_workpiece-material-hardened-mold-steel","pa_workpiece-material-stainless-steel","first","instock","shipping-taxable","product-type-simple","entry","content-bg","loop-entry"],"acf":[],"taxonomy_info":{"product_cat":[{"value":2615,"label":"Micro Internal Tooling"},{"value":3684,"label":"Micro Internal Grooving Bars"}],"product_tag":[{"value":4942,"label":"Grooving"},{"value":2655,"label":"Micro Diameter"},{"value":4953,"label":"Micro Grooving Bar"},{"value":4952,"label":"Small-Bore Machining"}],"pa_workpiece-material":[{"value":3617,"label":"Carbon &amp; Alloy Steel"},{"value":3688,"label":"Cast Iron"},{"value":3620,"label":"Hardened &amp; Mold Steel"},{"value":3618,"label":"Stainless Steel"}]},"featured_image_src_large":["https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MGR-Series-Solid-Carbide-Micro-Internal-Grooving-Bar-main-photo.png",966,924,false],"author_info":[],"comment_info":"","_links":{"self":[{"href":"https:\/\/hycuttingtools.com\/pt\/wp-json\/wp\/v2\/product\/2406","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hycuttingtools.com\/pt\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/hycuttingtools.com\/pt\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hycuttingtools.com\/pt\/wp-json\/wp\/v2\/media\/8708"}],"wp:attachment":[{"href":"https:\/\/hycuttingtools.com\/pt\/wp-json\/wp\/v2\/media?parent=2406"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/hycuttingtools.com\/pt\/wp-json\/wp\/v2\/product_brand?post=2406"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/hycuttingtools.com\/pt\/wp-json\/wp\/v2\/product_cat?post=2406"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/hycuttingtools.com\/pt\/wp-json\/wp\/v2\/product_tag?post=2406"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}