{"id":2401,"date":"2026-01-13T09:26:00","date_gmt":"2026-01-13T09:26:00","guid":{"rendered":"https:\/\/hycuttingtools.com\/?post_type=product&#038;p=2401"},"modified":"2026-09-24T08:21:29","modified_gmt":"2026-09-24T08:21:29","slug":"mnr-series-solid-carbide-micro-internal-grooving-boring-bar","status":"publish","type":"product","link":"https:\/\/hycuttingtools.com\/tr\/urun\/mnr-series-solid-carbide-micro-internal-grooving-boring-bar\/","title":{"rendered":"MNR Series Solid Carbide Micro Internal Grooving and Boring 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; color: #1e293b; font-family: Inter,Arial,sans-serif;\">\n<p><!-- SECTION 1 \u2014 PRODUCT INTRODUCTION --><\/p>\n<section class=\"hy-tab-section\">\n<h2 class=\"hy-tab-main-title\">MNR Micro Internal Grooving &amp; Boring Bar<\/h2>\n<p class=\"hy-tab-intro\" style=\"margin: 0 0 12px; color: #475569; font-size: 14px; line-height: 1.7;\">MNR Series solid carbide micro internal grooving and boring bars are designed for precision machining inside small-diameter bores. The compact cutting head and radiused cutting edge support internal boring, shallow grooving, shoulder finishing and controlled internal profiling.<\/p>\n<p style=\"margin: 0; color: #475569; font-size: 14px; line-height: 1.7;\">The integral fine-grain carbide body provides the rigidity required for small-bore CNC turning, while cutting diameters from \u00d80.8 mm to \u00d85.7 mm and effective lengths from 3 mm to 30 mm cover a wide range of confined internal features.<\/p>\n<\/section>\n<p><!-- SECTION 2 \u2014 PRODUCT OVERVIEW --><\/p>\n<section class=\"hy-tab-section\">\n<h3 class=\"hy-section-title\">\u00dcr\u00fcne Genel Bak\u0131\u015f<\/h3>\n<div style=\"width: 100%; max-width: 850px; margin: 0 auto; overflow: hidden; background: #ffffff;\"><img data-srcset=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MNR-Series-Solid-Carbide-Micro-Internal-Grooving-and-Boring-Bar-real-photo.png 948w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MNR-Series-Solid-Carbide-Micro-Internal-Grooving-and-Boring-Bar-real-photo-300x296.png 300w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MNR-Series-Solid-Carbide-Micro-Internal-Grooving-and-Boring-Bar-real-photo-768x757.png 768w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MNR-Series-Solid-Carbide-Micro-Internal-Grooving-and-Boring-Bar-real-photo-12x12.png 12w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MNR-Series-Solid-Carbide-Micro-Internal-Grooving-and-Boring-Bar-real-photo-100x100.png 100w\" decoding=\"async\" data-src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MNR-Series-Solid-Carbide-Micro-Internal-Grooving-and-Boring-Bar-real-photo.png\" class=\"aligncenter wp-image-8711 size-full lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" alt=\"MNR Series Solid Carbide Micro Internal Grooving and Boring Bar real photo\"   title=\"\"  sizes=\"(max-width: 948px) 100vw, 948px\" \/><noscript><img decoding=\"async\" class=\"aligncenter wp-image-8711 size-full\" src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MNR-Series-Solid-Carbide-Micro-Internal-Grooving-and-Boring-Bar-real-photo.png\" alt=\"MNR Series Solid Carbide Micro Internal Grooving and Boring Bar real photo\" width=\"948\" height=\"934\" title=\"\" srcset=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MNR-Series-Solid-Carbide-Micro-Internal-Grooving-and-Boring-Bar-real-photo.png 948w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MNR-Series-Solid-Carbide-Micro-Internal-Grooving-and-Boring-Bar-real-photo-300x296.png 300w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MNR-Series-Solid-Carbide-Micro-Internal-Grooving-and-Boring-Bar-real-photo-768x757.png 768w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MNR-Series-Solid-Carbide-Micro-Internal-Grooving-and-Boring-Bar-real-photo-12x12.png 12w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MNR-Series-Solid-Carbide-Micro-Internal-Grooving-and-Boring-Bar-real-photo-100x100.png 100w\" sizes=\"(max-width: 948px) 100vw, 948px\" \/><\/noscript><\/div>\n<\/section>\n<p><!-- SECTION 3 \u2014 KEY FEATURES --><\/p>\n<section class=\"hy-tab-section\">\n<h3 class=\"hy-section-title\">Key Product Features<\/h3>\n<p><img data-srcset=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MNR-Series-Solid-Carbide-Micro-Internal-Grooving-and-Boring-Bar-product-advantages.png 739w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MNR-Series-Solid-Carbide-Micro-Internal-Grooving-and-Boring-Bar-product-advantages-104x300.png 104w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MNR-Series-Solid-Carbide-Micro-Internal-Grooving-and-Boring-Bar-product-advantages-356x1024.png 356w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MNR-Series-Solid-Carbide-Micro-Internal-Grooving-and-Boring-Bar-product-advantages-533x1536.png 533w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MNR-Series-Solid-Carbide-Micro-Internal-Grooving-and-Boring-Bar-product-advantages-711x2048.png 711w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MNR-Series-Solid-Carbide-Micro-Internal-Grooving-and-Boring-Bar-product-advantages-4x12.png 4w\" decoding=\"async\" data-src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MNR-Series-Solid-Carbide-Micro-Internal-Grooving-and-Boring-Bar-product-advantages.png\" class=\"aligncenter wp-image-8712 size-full lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" alt=\"MNR Series Solid Carbide Micro Internal Grooving and Boring Bar product advantages\"   title=\"\"  sizes=\"(max-width: 739px) 100vw, 739px\" \/><noscript><img decoding=\"async\" class=\"aligncenter wp-image-8712 size-full\" src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MNR-Series-Solid-Carbide-Micro-Internal-Grooving-and-Boring-Bar-product-advantages.png\" alt=\"MNR Series Solid Carbide Micro Internal Grooving and Boring Bar product advantages\" width=\"739\" height=\"2128\" title=\"\" srcset=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MNR-Series-Solid-Carbide-Micro-Internal-Grooving-and-Boring-Bar-product-advantages.png 739w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MNR-Series-Solid-Carbide-Micro-Internal-Grooving-and-Boring-Bar-product-advantages-104x300.png 104w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MNR-Series-Solid-Carbide-Micro-Internal-Grooving-and-Boring-Bar-product-advantages-356x1024.png 356w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MNR-Series-Solid-Carbide-Micro-Internal-Grooving-and-Boring-Bar-product-advantages-533x1536.png 533w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MNR-Series-Solid-Carbide-Micro-Internal-Grooving-and-Boring-Bar-product-advantages-711x2048.png 711w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/MNR-Series-Solid-Carbide-Micro-Internal-Grooving-and-Boring-Bar-product-advantages-4x12.png 4w\" sizes=\"(max-width: 739px) 100vw, 739px\" \/><\/noscript><\/p>\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 Access<\/strong><span style=\"display: block; color: #475569; font-size: 14px; line-height: 1.65;\">Actual cutting diameters from \u00d80.8 mm provide access to miniature and restricted internal features.<\/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;\">Boring &amp; Grooving Capability<\/strong><span style=\"display: block; color: #475569; font-size: 14px; line-height: 1.65;\">The radiused cutting profile supports internal diameter correction, shallow grooves, shoulders and internal contours.<\/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 vibration in small-bore machining.<\/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;\">Effective lengths from 3 mm to 30 mm support both shallow and recessed internal features.<\/span><\/div>\n<\/div>\n<\/section>\n<p><!-- SECTION 4 \u2014 APPLICATIONS --><\/p>\n<section class=\"hy-tab-section\">\n<h3 class=\"hy-section-title\">Tipik Uygulamalar<\/h3>\n<div class=\"hy-overview-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;\">Uygulama<\/th>\n<th style=\"padding: 12px 16px; border-bottom: 2px solid #cbd5e1; text-align: left;\">Machining Purpose<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #0f766e; font-weight: bold;\">Small-Bore Internal Turning<\/td>\n<td style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #475569;\">Precision correction and finishing of small internal diameters.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #0f766e; font-weight: bold;\">Shallow Internal Grooving<\/td>\n<td style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #475569;\">Producing shallow relief grooves and recessed internal features within the specified Q depth.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #0f766e; font-weight: bold;\">Internal Shoulder Finishing<\/td>\n<td style=\"padding: 12px 16px; border-bottom: 1px solid #f1f5f9; color: #475569;\">Finishing internal shoulders and transitions with a controlled cutting radius.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px 16px; color: #0f766e; font-weight: bold;\">Internal Profiling<\/td>\n<td style=\"padding: 12px 16px; color: #475569;\">Machining simple internal contours when tool clearance and cutting direction are verified.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n<p><!-- SECTION 5 \u2014 MATERIAL SUITABILITY --><\/p>\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 260px; padding: 15px 16px; background: #EEF8F1; border-radius: 5px;\"><strong style=\"display: block; margin: 0 0 5px; color: #0f766e; font-size: 14px;\">Best Suitability<\/strong><span style=\"display: block; color: #475569; font-size: 13px; line-height: 1.65;\">Carbon Steel, Alloy Steel, Cast Iron, Stainless Steel and Titanium Alloys<\/span><\/div>\n<div style=\"flex: 1 1 260px; padding: 15px 16px; background: #f8fafc; border-radius: 5px;\"><strong style=\"display: block; margin: 0 0 5px; color: #0f766e; font-size: 14px;\">Good Suitability<\/strong><span style=\"display: block; color: #475569; font-size: 13px; line-height: 1.65;\">Pre-Hardened Steel, Hardened Steel Below 48 HRC, Aluminum Alloys, Copper Alloys, Plastics and Acrylic<\/span><\/div>\n<\/div>\n<p style=\"margin: 10px 0 0; color: #64748b; font-size: 13px; line-height: 1.6;\"><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>Select the carbide grade, coating and edge preparation according to the workpiece material, required surface finish and cutting conditions.<\/p>\n<\/section>\n<p><!-- SECTION 6 \u2014 TOOL SELECTION --><\/p>\n<section class=\"hy-tab-section\">\n<h3 class=\"hy-section-title\">Application &amp; Selection Guidance<\/h3>\n<div style=\"display: flex; flex-wrap: wrap; gap: 8px;\">\n<div style=\"flex: 1 1 calc(50% - 8px); min-width: 240px; padding: 14px 16px; background: #f8fafc; border-radius: 4px;\"><strong style=\"display: block; margin-bottom: 5px; color: #0f766e; font-size: 14px;\">Check Bore Clearance<\/strong><br \/>\n<span style=\"display: block; color: #475569; font-size: 13px; line-height: 1.55;\">Confirm that the cutting head and neck can enter the bore without interference.<\/span><\/div>\n<div style=\"flex: 1 1 calc(50% - 8px); min-width: 240px; padding: 14px 16px; background: #f8fafc; border-radius: 4px;\"><strong style=\"display: block; margin-bottom: 5px; color: #0f766e; font-size: 14px;\">Match Cutting Depth Q<\/strong><br \/>\n<span style=\"display: block; color: #475569; font-size: 13px; line-height: 1.55;\">Do not exceed the maximum cutting depth specified for the selected model.<\/span><\/div>\n<div style=\"flex: 1 1 calc(50% - 8px); min-width: 240px; padding: 14px 16px; background: #f8fafc; border-radius: 4px;\"><strong style=\"display: block; margin-bottom: 5px; color: #0f766e; font-size: 14px;\">Select the Tip Radius<\/strong><br \/>\n<span style=\"display: block; color: #475569; font-size: 13px; line-height: 1.55;\">Match radius R to the required internal corner geometry and surface-finish requirement.<\/span><\/div>\n<div style=\"flex: 1 1 calc(50% - 8px); min-width: 240px; padding: 14px 16px; background: #f8fafc; border-radius: 4px;\"><strong style=\"display: block; margin-bottom: 5px; color: #0f766e; font-size: 14px;\">Minimize Tool Overhang<\/strong><br \/>\n<span style=\"display: block; color: #475569; font-size: 13px; line-height: 1.55;\">Use the shortest effective length that can safely reach the machining position.<\/span><\/div>\n<\/div>\n<\/section>\n<p><!-- SECTION 7 \u2014 PRODUCT VIDEO --><\/p>\n<section class=\"hy-tab-section\">\n<figure id=\"attachment_8700\" aria-describedby=\"caption-attachment-8700\" style=\"width: 1145px\" class=\"wp-caption aligncenter\"><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\" \/><figcaption id=\"caption-attachment-8700\" class=\"wp-caption-text\"><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> Micro internal tooling selection guide covering boring, grooving, threading, profiling and face-grooving tools for small-diameter machining.<\/figcaption><\/figure>\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 grooving and 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;\">Series-level product video. Confirm the selected MNR cutting diameter, radius and effective length before ordering.<\/p>\n<\/section>\n<p><!-- SECTION 8 \u2014 CUSTOM OPTIONS --><\/p>\n<section class=\"hy-tab-section\" style=\"padding: 18px 20px; background: #EEF8F1; border-radius: 6px;\">\n<h3 class=\"hy-section-title\">Custom MNR Tools<\/h3>\n<p style=\"margin: 0; color: #475569; font-size: 14px; line-height: 1.7;\">Custom cutting diameters, tip radii, cutting depths, effective lengths, shank diameters, coatings, laser marking and private-label packaging can be produced according to component drawings or reference samples.<\/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;\">MNR Series solid carbide micro internal grooving and boring bars are designed for precision machining inside small-diameter bores. The compact cutting head and radiused cutting edge support internal boring, shallow grooving, shoulder finishing and controlled internal profiling<\/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;\">Substrat:<\/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;\">\u0130nce Taneli Kat\u0131 Karb\u00fcr<\/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;\">Alet Tipi:<\/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<\/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;\">Seri:<\/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;\">MNR<\/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;\">Cutting Diameter:<\/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;\">\u00d80.8\u2013\u00d85.7 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;\">Tip Radius:<\/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;\">0.05\u20130.20 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;\">\u015eaft \u00c7ap\u0131:<\/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 \/ \u00d86 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;\">Effective 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;\">3\u201330 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 \/ 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":2404,"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":[2615,2643],"product_tag":[4948,4942,2655,4953,4952],"class_list":["post-2401","product","type-product","status-publish","has-post-thumbnail","product_cat-micro-internal-tooling","product_cat-micro-boring-internal-turning-bars","product_tag-boring","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":2643,"label":"Micro Boring &amp; 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