{"id":2782,"date":"2026-03-11T10:13:17","date_gmt":"2026-03-11T10:13:17","guid":{"rendered":"https:\/\/hycuttingtools.com\/?post_type=product&#038;p=2782"},"modified":"2026-09-24T11:04:47","modified_gmt":"2026-09-24T11:04:47","slug":"hrc55-4-flute-solid-carbide-square-end-mill-for-steel","status":"publish","type":"product","link":"https:\/\/hycuttingtools.com\/fa\/product\/hrc55-4-flute-solid-carbide-square-end-mill-for-steel\/","title":{"rendered":"HRC55 \u0641\u0631\u0632 \u0686\u0647\u0627\u0631\u0634\u06cc\u0627\u0631\u0647\u200c\u0627\u06cc \u0627\u0632 \u062c\u0646\u0633 \u06a9\u0627\u0631\u0628\u06cc\u062f \u062c\u0627\u0645\u062f \u0628\u0631\u0627\u06cc \u0641\u0648\u0644\u0627\u062f \u0648 \u0641\u0648\u0644\u0627\u062f \u0622\u0644\u06cc\u0627\u0698\u06cc"},"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 OVERVIEW --><\/p>\n<section class=\"hy-tab-section\">\n<h2 class=\"hy-tab-main-title\">HRC55 4-Flute Carbide Square End Mill<\/h2>\n<p class=\"hy-tab-intro\">This HRC55-series 4-flute solid carbide square end mill is designed for efficient CNC milling of carbon steel, alloy steel and confirmed pre-hardened or mold steel. Its rigid carbide core, four cutting edges and precision-ground square-end profile support stable side milling, profiling, shoulder milling, pocketing and finishing. Standard diameters from \u00d81 to \u00d820 mm are available with AlTiN, TiSiN and application-matched coating options.<\/p>\n<div style=\"display: flex; flex-wrap: wrap; width: 100%; margin: 20px 0 0; padding: 0; border: 1px solid #dbe3ec; border-top: 3px solid #2146B5; background: #f8fafc; box-sizing: border-box;\">\n<div style=\"flex: 1 1 140px; padding: 12px 14px; border-right: 1px solid #dbe3ec;\"><small style=\"display: block; color: #64748b; font-weight: bold;\">END PROFILE<\/small><strong>Square \/ Flat End<\/strong><\/div>\n<div style=\"flex: 1 1 140px; padding: 12px 14px; border-right: 1px solid #dbe3ec;\"><small style=\"display: block; color: #64748b; font-weight: bold;\">FLUTES<\/small><strong>4 Flutes<\/strong><\/div>\n<div style=\"flex: 1 1 140px; padding: 12px 14px; border-right: 1px solid #dbe3ec;\"><small style=\"display: block; color: #64748b; font-weight: bold;\">DIAMETER RANGE<\/small><strong>\u00d81\u2013\u00d820 mm<\/strong><\/div>\n<div style=\"flex: 1 1 140px; padding: 12px 14px;\"><small style=\"display: block; color: #64748b; font-weight: bold;\">APPLICATION<\/small><strong>Up to HRC55*<\/strong><\/div>\n<\/div>\n<\/section>\n<section class=\"hy-tab-section\">\n<h3 class=\"hy-section-title\">Precision-Ground Cutting Geometry<\/h3>\n<div style=\"width: 100%; max-width: 900px; margin: 0 auto;\"><img decoding=\"async\" class=\"lazyload\" data-src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/Inch-Size-4-Flutes-Square-End-Mills-HRC55-3_\u526f\u672c-scaled-e1773145904508.webp\" style=\"display: block; width: 100%; height: auto; border-radius: 6px;\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" alt=\"Precision-ground four-flute HRC55 square end mill geometry\" title=\"\"><noscript><img decoding=\"async\" style=\"display: block; width: 100%; height: auto; border-radius: 6px;\" src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/Inch-Size-4-Flutes-Square-End-Mills-HRC55-3_\u526f\u672c-scaled-e1773145904508.webp\" alt=\"Precision-ground four-flute HRC55 square end mill geometry\" title=\"\"><\/noscript><\/div>\n<p class=\"hy-card-text\" style=\"margin-top: 14px;\">The ground cutting geometry supports edge sharpness, consistent tooth engagement and stable chip flow during steel milling.<\/p>\n<\/section>\n<section class=\"hy-tab-section\">\n<h3 class=\"hy-section-title\">Key Features<\/h3>\n<div style=\"display: flex; flex-wrap: wrap; gap: 14px; width: 100%;\">\n<div class=\"hy-tab-card\" style=\"flex: 1 1 210px; padding: 16px; border: 1px solid #e2e8f0; border-top: 3px solid #2146B5;\">\n<h4 class=\"hy-card-title\">Solid Carbide Rigidity<\/h4>\n<p class=\"hy-card-text\">A rigid carbide substrate supports dimensional stability in steel machining.<\/p>\n<\/div>\n<div class=\"hy-tab-card\" style=\"flex: 1 1 210px; padding: 16px; border: 1px solid #e2e8f0; border-top: 3px solid #2146B5;\">\n<h4 class=\"hy-card-title\">Four-Flute Efficiency<\/h4>\n<p class=\"hy-card-text\">Four cutting edges support productive side milling and finishing.<\/p>\n<\/div>\n<div class=\"hy-tab-card\" style=\"flex: 1 1 210px; padding: 16px; border: 1px solid #e2e8f0; border-top: 3px solid #2146B5;\">\n<h4 class=\"hy-card-title\">Square-End Accuracy<\/h4>\n<p class=\"hy-card-text\">Flat-bottom geometry produces pockets and defined 90\u00b0 shoulders.<\/p>\n<\/div>\n<div class=\"hy-tab-card\" style=\"flex: 1 1 210px; padding: 16px; border: 1px solid #e2e8f0; border-top: 3px solid #2146B5;\">\n<h4 class=\"hy-card-title\">Coating Flexibility<\/h4>\n<p class=\"hy-card-text\">AlTiN, TiSiN or another coating can be selected by steel grade and conditions.<\/p>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"hy-tab-section\">\n<h3 class=\"hy-section-title\">Product Gallery<\/h3>\n<div style=\"display: flex; flex-direction: column; gap: 18px; width: 100%; max-width: 900px; margin: 0 auto;\"><img decoding=\"async\" class=\"lazyload\" data-src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/03\/4-flutes-square-end-mill-real1-scaled.png\" style=\"display: block; width: 100%; height: auto; border-radius: 6px;\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" alt=\"HRC55 four-flute square end mills for steel\" title=\"\"><noscript><img decoding=\"async\" style=\"display: block; width: 100%; height: auto; border-radius: 6px;\" src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/03\/4-flutes-square-end-mill-real1-scaled.png\" alt=\"HRC55 four-flute square end mills for steel\" title=\"\"><\/noscript><img decoding=\"async\" class=\"lazyload\" data-src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/03\/4-flutes-square-end-mill-real2-scaled.png\" style=\"display: block; width: 100%; height: auto; border-radius: 6px;\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" alt=\"HRC55 four-flute square end mill sizes in protective tubes\" title=\"\"><noscript><img decoding=\"async\" style=\"display: block; width: 100%; height: auto; border-radius: 6px;\" src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/03\/4-flutes-square-end-mill-real2-scaled.png\" alt=\"HRC55 four-flute square end mill sizes in protective tubes\" title=\"\"><\/noscript><img data-srcset=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/Dlc-coated-3-Flute-Hrc60-Solid-Carbide-7_\u526f\u672c-scaled-e1788364061966.webp 2560w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/Dlc-coated-3-Flute-Hrc60-Solid-Carbide-7_\u526f\u672c-scaled-e1788364061966-300x264.webp 300w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/Dlc-coated-3-Flute-Hrc60-Solid-Carbide-7_\u526f\u672c-scaled-e1788364061966-1024x900.webp 1024w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/Dlc-coated-3-Flute-Hrc60-Solid-Carbide-7_\u526f\u672c-scaled-e1788364061966-768x675.webp 768w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/Dlc-coated-3-Flute-Hrc60-Solid-Carbide-7_\u526f\u672c-scaled-e1788364061966-1536x1350.webp 1536w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/Dlc-coated-3-Flute-Hrc60-Solid-Carbide-7_\u526f\u672c-scaled-e1788364061966-2048x1800.webp 2048w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/Dlc-coated-3-Flute-Hrc60-Solid-Carbide-7_\u526f\u672c-scaled-e1788364061966-14x12.webp 14w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/Dlc-coated-3-Flute-Hrc60-Solid-Carbide-7_\u526f\u672c-scaled-e1788364061966-1000x879.webp 1000w\" decoding=\"async\" data-src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/Dlc-coated-3-Flute-Hrc60-Solid-Carbide-7_\u526f\u672c-scaled-e1788364061966.webp\" class=\"aligncenter wp-image-1967 size-full lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" alt=\"DLC rough ball nose square batch display\"   title=\"\"  sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><noscript><img decoding=\"async\" class=\"aligncenter wp-image-1967 size-full\" src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/Dlc-coated-3-Flute-Hrc60-Solid-Carbide-7_\u526f\u672c-scaled-e1788364061966.webp\" alt=\"DLC rough ball nose square batch display\" width=\"2560\" height=\"2250\" title=\"\" srcset=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/Dlc-coated-3-Flute-Hrc60-Solid-Carbide-7_\u526f\u672c-scaled-e1788364061966.webp 2560w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/Dlc-coated-3-Flute-Hrc60-Solid-Carbide-7_\u526f\u672c-scaled-e1788364061966-300x264.webp 300w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/Dlc-coated-3-Flute-Hrc60-Solid-Carbide-7_\u526f\u672c-scaled-e1788364061966-1024x900.webp 1024w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/Dlc-coated-3-Flute-Hrc60-Solid-Carbide-7_\u526f\u672c-scaled-e1788364061966-768x675.webp 768w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/Dlc-coated-3-Flute-Hrc60-Solid-Carbide-7_\u526f\u672c-scaled-e1788364061966-1536x1350.webp 1536w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/Dlc-coated-3-Flute-Hrc60-Solid-Carbide-7_\u526f\u672c-scaled-e1788364061966-2048x1800.webp 2048w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/Dlc-coated-3-Flute-Hrc60-Solid-Carbide-7_\u526f\u672c-scaled-e1788364061966-14x12.webp 14w, https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/01\/Dlc-coated-3-Flute-Hrc60-Solid-Carbide-7_\u526f\u672c-scaled-e1788364061966-1000x879.webp 1000w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/noscript><\/div>\n<\/section>\n<section class=\"hy-tab-section\">\n<h3 class=\"hy-section-title\">Recommended Applications<\/h3>\n<div style=\"display: flex; flex-wrap: wrap; gap: 14px; width: 100%;\">\n<div class=\"hy-tab-card\" style=\"flex: 1 1 210px; padding: 16px; background: #f8fafc;\">\n<h4 class=\"hy-card-title\">Stable Wall Finishing<\/h4>\n<p class=\"hy-card-text\">Side-wall machining with controlled radial engagement and low runout.<\/p>\n<\/div>\n<div class=\"hy-tab-card\" style=\"flex: 1 1 210px; padding: 16px; background: #f8fafc;\">\n<h4 class=\"hy-card-title\">Slot &amp; Pocket Milling<\/h4>\n<p class=\"hy-card-text\">Selected slotting and pocketing with appropriate chip evacuation.<\/p>\n<\/div>\n<div class=\"hy-tab-card\" style=\"flex: 1 1 210px; padding: 16px; background: #f8fafc;\">\n<h4 class=\"hy-card-title\">Profile Machining<\/h4>\n<p class=\"hy-card-text\">Clean contours and accurate external steel features.<\/p>\n<\/div>\n<div class=\"hy-tab-card\" style=\"flex: 1 1 210px; padding: 16px; background: #f8fafc;\">\n<h4 class=\"hy-card-title\">Steel &amp; Alloy Steel<\/h4>\n<p class=\"hy-card-text\">General CNC machining of confirmed carbon, alloy and mold steels.<\/p>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"hy-tab-section\">\n<h3 class=\"hy-section-title\">Application Reference<\/h3>\n<div style=\"width: 100%; max-width: 900px; margin: 0 auto;\"><img decoding=\"async\" class=\"lazyload\" data-src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/03\/CNC-Machining-Application-Demonstration-HRC55-Degree-End-Mill-e1773255932544.webp\" style=\"display: block; width: 100%; height: auto; border-radius: 6px;\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" alt=\"HRC55 four-flute square end mill CNC machining application\" title=\"\"><noscript><img decoding=\"async\" style=\"display: block; width: 100%; height: auto; border-radius: 6px;\" src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/03\/CNC-Machining-Application-Demonstration-HRC55-Degree-End-Mill-e1773255932544.webp\" alt=\"HRC55 four-flute square end mill CNC machining application\" title=\"\"><\/noscript><\/div>\n<div style=\"display: flex; flex-wrap: wrap; gap: 14px; width: 100%; margin: 18px 0 0;\">\n<div class=\"hy-tab-card\" style=\"flex: 1 1 220px; padding: 16px; border: 1px solid #e2e8f0; border-top: 3px solid #2146B5; background: #ffffff;\">\n<h4 class=\"hy-card-title\">Carbon Steel<\/h4>\n<p class=\"hy-card-text\">Suitable for general side milling, profiling, shoulder milling and finishing under stable cutting conditions.<\/p>\n<\/div>\n<div class=\"hy-tab-card\" style=\"flex: 1 1 220px; padding: 16px; border: 1px solid #e2e8f0; border-top: 3px solid #2146B5; background: #ffffff;\">\n<h4 class=\"hy-card-title\">Alloy Steel<\/h4>\n<p class=\"hy-card-text\">Coating and cutting parameters can be matched to the alloy grade, hardness and machining engagement.<\/p>\n<\/div>\n<div class=\"hy-tab-card\" style=\"flex: 1 1 220px; padding: 16px; border: 1px solid #e2e8f0; border-top: 3px solid #2146B5; background: #ffffff;\">\n<h4 class=\"hy-card-title\">Pre-Hardened &amp; Mold Steel<\/h4>\n<p class=\"hy-card-text\">Selected applications up to the HRC55 series range after confirming material grade and machining conditions.<\/p>\n<\/div>\n<\/div>\n<div class=\"hy-note\" style=\"margin-top: 14px; padding: 14px 18px; background: #f8fafc; border-left: 3px solid #2146B5;\"><strong>Application Note:<\/strong> HRC55 is the upper series target under selected conditions. Actual suitability depends on workpiece grade, hardness, engagement, machine rigidity, coating and cutting data.<\/div>\n<\/section>\n<section class=\"hy-tab-section\">\n<h3 class=\"hy-section-title\">HRC55 Square End Mill Machining Video<\/h3>\n<div style=\"width: 100%; max-width: 860px; margin: 0 auto; overflow: hidden; border: 1px solid #e2e8f0; border-radius: 6px; background: #ffffff; box-sizing: border-box;\">\n<p><video class=\"lazyload\" style=\"display: block; width: 100%; height: auto; aspect-ratio: 16 \/ 9; background: #000000; object-fit: contain;\" preload=\"metadata\" controls=\"controls\" width=\"300\" height=\"150\"><source src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/09\/HRC55-square-end-mill-video.mp4\" type=\"video\/mp4\" \/>Your browser does not support HTML5 video.<\/video><\/p>\n<div class=\"hy-media-caption\" style=\"padding: 14px 18px; border-top: 1px solid #e2e8f0; background: #f8fafc; text-align: center;\">HRC55 4-Flute Solid Carbide Square End Mill Machining Video<\/div>\n<\/div>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"<div style=\"width: 100% !important; margin: 10px 0 0 0 !important; padding: 0 !important; box-sizing: border-box !important; color: #1e293b !important; font-family: Inter,-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif !important; line-height: 1.4 !important; text-align: left !important;\">\n<div style=\"display: block !important; height: auto !important; min-height: 0 !important; margin: 0 0 6px 0 !important; padding: 0 !important; color: #2146b5 !important; font-size: 14px !important; font-weight: 700 !important; line-height: 1.3 !important; letter-spacing: .03em !important; text-transform: uppercase !important;\">HRC55 4-FLUTE STEEL MILLING END MILL SERIES<\/div>\n<div style=\"display: block !important; height: auto !important; min-height: 0 !important; margin: 0 0 12px 0 !important; padding: 0 !important; color: #475569 !important; font-size: 15px !important; font-weight: 400 !important; line-height: 1.5 !important;\">4-flute square-end milling for side milling, profiling, shoulder milling, pocketing and finishing in carbon steel, alloy steel and selected pre-hardened or mold steel.<\/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;\">Substrate:<\/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;\">Tool Type:<\/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;\">Square End Mill<\/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;\">End Profile:<\/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;\">Flat \/ Square End<\/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;\">Flute Count:<\/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;\">4 Flutes<\/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;\">Steel Hardness:<\/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;\">Up to HRC55<\/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;\">Helix Angle:<\/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;\">35\u00b0 \/ 38\u00b0<\/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;\">Dia. 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