{"product_id":"grs-044-504-c-max-burin-tungsten-carbide-graver-handle-kit","title":"GRS 044-504 C-Max Burin Graver \u0026 Handle Kit","description":"\u003cp\u003eThe GRS 044-504 C-Max Burin Graver \u0026amp; Handle Kit is a complete hand engraving solution built around GRS C-Max tungsten carbide — a premium carbide grade engineered to hold a razor-sharp edge far longer than conventional graver materials. This burin is designed specifically for hand engraving, with a particular focus on intaglio printmaking. Whether you are an experienced engraver or picking up a graver for the first time, this kit delivers a ready-to-use tool that is precision-ground and immediately functional straight out of the box.\u003c\/p\u003e\n\n\u003cp\u003eThe burin blank measures \u003cstrong\u003e0.125\" (3.17mm)\u003c\/strong\u003e in diameter and approximately \u003cstrong\u003e3\" (75mm)\u003c\/strong\u003e in length. Two ground reference surfaces on the top front of the burin form a \u003cstrong\u003e90° square edge\u003c\/strong\u003e, providing a consistent clamping surface compatible with most GRS sharpening fixtures for accurate resharpening. The front face is ground at a \u003cstrong\u003e35° face angle\u003c\/strong\u003e, with a \u003cstrong\u003e15° relief face\u003c\/strong\u003e behind it. Both sides of the burin are thinned with a \u003cstrong\u003e2.5° relief surface\u003c\/strong\u003e ground approximately \u003cstrong\u003e0.6\" (15mm)\u003c\/strong\u003e long, reducing drag and improving cutting performance.\u003c\/p\u003e\n\n\u003cp\u003eThe heel features two flat ground surfaces approximately \u003cstrong\u003e0.25\" (6mm)\u003c\/strong\u003e long at a \u003cstrong\u003e12° elevation angle\u003c\/strong\u003e, forming a \u003cstrong\u003e100° included V-point\u003c\/strong\u003e — creating a slightly wider point than a traditional square graver for enhanced control and versatility.\u003c\/p\u003e\n\n\u003cp\u003eThe included GRS adjustable graver handle allows you to dial in your preferred burin extension length. Simply loosen the two set screws, slide the burin to the desired position, and re-tighten. Because C-Max carbide is extremely hard, it requires a \u003cstrong\u003ediamond abrasive\u003c\/strong\u003e for sharpening — standard abrasive wheels are not suitable for this material.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eC-Max tungsten carbide graver blank with exceptional edge retention\u003c\/li\u003e\n\u003cli\u003eOptimized for hand engraving and intaglio printmaking\u003c\/li\u003e\n\u003cli\u003e0.125\" (3.17mm) diameter round blank, approximately 3\" (75mm) long\u003c\/li\u003e\n\u003cli\u003eTwo ground reference surfaces forming a 90° square edge for sharpening fixture compatibility\u003c\/li\u003e\n\u003cli\u003e35° front face angle with 15° relief face behind\u003c\/li\u003e\n\u003cli\u003e2.5° side relief surfaces ground approximately 0.6\" (15mm) long on both sides\u003c\/li\u003e\n\u003cli\u003eHeel: two flat surfaces at 12° elevation, forming a 100° included V-point\u003c\/li\u003e\n\u003cli\u003eAdjustable graver handle with two set screws for custom burin length positioning\u003c\/li\u003e\n\u003cli\u003eReady to use out of the box — no additional grinding required\u003c\/li\u003e\n\u003cli\u003eRequires diamond abrasive for resharpening (not included)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003e044-504\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGraver Material\u003c\/th\u003e\n\u003ctd\u003eC-Max Tungsten Carbide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBlank Diameter\u003c\/th\u003e\n\u003ctd\u003e0.125\" (3.17mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBlank Length\u003c\/th\u003e\n\u003ctd\u003eApproximately 3\" (75mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFace Angle\u003c\/th\u003e\n\u003ctd\u003e35°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRelief Face Angle\u003c\/th\u003e\n\u003ctd\u003e15°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSide Relief Angle\u003c\/th\u003e\n\u003ctd\u003e2.5° (approx. 0.6\" \/ 15mm long)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeel Elevation Angle\u003c\/th\u003e\n\u003ctd\u003e12°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeel Included Angle\u003c\/th\u003e\n\u003ctd\u003e100° V-point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReference Surfaces\u003c\/th\u003e\n\u003ctd\u003eTwo ground surfaces forming 90° square edge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eHand engraving, intaglio printmaking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSharpening Requirement\u003c\/th\u003e\n\u003ctd\u003eDiamond abrasive only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eC-Max Burin Tungsten Carbide Graver\u003c\/li\u003e\n\u003cli\u003eAdjustable Graver Handle\u003c\/li\u003e\n\u003cli\u003eAllen Wrench\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eC-Max tungsten carbide can only be sharpened using diamond abrasives such as GRS diamond wheels used with the Power Hone system; standard abrasive wheels will not sharpen this material.\u003c\/li\u003e\n\u003cli\u003eUse a wine cork or similar protective cap to cover the tip when the burin is not in use.\u003c\/li\u003e\n\u003cli\u003eThis product contains cobalt. See California Proposition 65 warnings for applicable health information.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Glendo GRS","offers":[{"title":"Default Title","offer_id":43579907277014,"sku":"104.504","price":84.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/grs-044-504-c-max-burin-graver-and-handle-kit-otto-frei.jpg?v=1719958387","url":"https:\/\/www.ottofrei.com\/ja\/products\/grs-044-504-c-max-burin-tungsten-carbide-graver-handle-kit","provider":"Otto Frei","version":"1.0","type":"link"}