{"product_id":"20mm-coarse-grit-cylinder-diamond-bur-rotary-tool","title":"20mm Coarse Grit Round End Cylinder Diamond Bur – Rotary Tool for Gemstone, Glass \u0026 Jewelry","description":"\u003cp\u003e\u003cstrong\u003eRound End Cylindrical Diamond Bur – Precision Grinding \u0026amp; Carving Tool\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDesign:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDiamond-coated cylindrical bur with a rounded tip for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003econtouring\u003c\/strong\u003e,\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003egrooving\u003c\/strong\u003e, and\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003edetailing\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ein hard materials. Ideal for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eglass\u003c\/strong\u003e,\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eceramics\u003c\/strong\u003e,\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003egemstones\u003c\/strong\u003e, and\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ehardened alloys\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003ca href=\"https:\/\/lapidarygrinder.com\/\" rel=\"noreferrer\" target=\"_blank\"\u003eGemstones\u003c\/a\u003e).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDiameter Range:\u003c\/strong\u003e\u003cspan\u003e 6\u003c\/span\u003emm–40mm – Versatile sizing for fine to medium-scale work.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eShank Diameter:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e6mm (standard) – Compatible with\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003erotary tools\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003ca href=\"https:\/\/lapidarygrinder.com\/collections\/diamond-carving-bur\" rel=\"noreferrer\" target=\"_blank\"\u003eRotary Tools\u003c\/a\u003e) and\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eflex shafts\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGrit Options:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e80# (coarse), 150# (medium), 240# (fine) – Optimized for material removal or finishing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003col start=\"1\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRounded Tip Design:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEnables smooth transitions and\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eundercut carving\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003ca href=\"https:\/\/lapidarygrinder.com\/collections\/diamond-carving-bur\" rel=\"noreferrer\" target=\"_blank\"\u003eCarving Tools\u003c\/a\u003e) in tight spaces.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFull Diamond Coating:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEnsures 360° abrasion resistance for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003elongevity\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003ca href=\"https:\/\/lapidarygrinder.com\/collections\/diamond-grinding-wheel\" rel=\"noreferrer\" target=\"_blank\"\u003eDiamond Abrasives\u003c\/a\u003e).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHeat Dissipation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eReinforced alloy core minimizes thermal deformation during\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ehigh-speed grinding\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003ca href=\"https:\/\/lapidarygrinder.com\/collections\/diamond-grinding-wheel\" rel=\"noreferrer\" target=\"_blank\"\u003eGrinding Systems\u003c\/a\u003e).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eJewelry Making:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCarve intricate patterns in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003egemstone settings\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003ca href=\"https:\/\/lapidarygrinder.com\/collections\/diamond-carving-bur\" rel=\"noreferrer\" target=\"_blank\"\u003eJewelry Tools\u003c\/a\u003e).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGlass Art:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eShape edges and drill holes in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003estained glass\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003ca href=\"https:\/\/lapidarygrinder.com\/\" rel=\"noreferrer\" target=\"_blank\"\u003eGlasswork\u003c\/a\u003e).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDental\/Industrial Molds:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRefine contours in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eceramic molds\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003ca href=\"https:\/\/lapidarygrinder.com\/\" rel=\"noreferrer\" target=\"_blank\"\u003eCeramic\u003c\/a\u003e) or\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003etitanium prototypes\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eUsage Guidelines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSpeed:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOperate at ≤15,000 RPM for delicate materials; ≤25,000 RPM for metals.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCooling:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUse\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ewater spray\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003ca href=\"https:\/\/lapidarygrinder.com\/collections\/water-swivel-adaptor\" rel=\"noreferrer\" target=\"_blank\"\u003eCooling Systems\u003c\/a\u003e) to prevent overheating.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePressure:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eApply light contact to preserve diamond coating integrity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Choose This Bur?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePrecision Control:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRounded geometry ideal for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3D sculpting\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003ca href=\"https:\/\/lapidarygrinder.com\/collections\/diamond-carving-bur\" rel=\"noreferrer\" target=\"_blank\"\u003eSculpting Tools\u003c\/a\u003e) and\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eorganic shapes\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDurability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDiamond coating outperforms traditional abrasives in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ehard-material workflows\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003ca href=\"https:\/\/lapidarygrinder.com\/collections\/diamond-grinding-wheel\" rel=\"noreferrer\" target=\"_blank\"\u003eHard Metals\u003c\/a\u003e).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eVersatility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAdaptable to\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003elapidary\u003c\/strong\u003e,\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003emetalworking\u003c\/strong\u003e, and\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eartisan crafts\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003ca href=\"https:\/\/lapidarygrinder.com\/\" rel=\"noreferrer\" target=\"_blank\"\u003eLapidary Tools\u003c\/a\u003e).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eExplore Complementary Products:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePolishing Kits:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/lapidarygrinder.com\/collections\/diamond-compound-paste\" rel=\"noreferrer\" target=\"_blank\"\u003eDiamond Compound Paste\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGrinding Wheels:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/lapidarygrinder.com\/collections\/diamond-grinding-wheel\" rel=\"noreferrer\" target=\"_blank\"\u003eDiamond Grinding Solutions\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSafety Gear:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/lapidarygrinder.com\/collections\/safety-equipment\" rel=\"noreferrer\" target=\"_blank\"\u003eProtective Equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor custom grit\/size configurations or bulk orders, contact\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/lapidarygrinder.com\/\" rel=\"noreferrer\" target=\"_blank\"\u003eHANS Lapidary\u003c\/a\u003e. Engineered for professionals demanding\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eprecision\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ein high-detail grinding and carving.\u003c\/p\u003e","brand":"hanslapidarytool","offers":[{"title":"Default Title","offer_id":41537900937262,"sku":null,"price":10.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0575\/4542\/4942\/files\/Round_End_Cylidner_Diamond_Bur_59c6ff21-7d77-4f47-aa43-020747817c80.jpg?v=1757996136","url":"https:\/\/hanslapidarytool.com\/products\/20mm-coarse-grit-cylinder-diamond-bur-rotary-tool","provider":" Hans Lapidary Tool","version":"1.0","type":"link"}