{"product_id":"34mm-diamond-donut-bur-400-grit-5pcs","title":"34mm Diamond Donut Burs – 5pcs Set, 400 Grit for Glass, Stone \u0026 Jewelry","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noreferrer\" href=\"https:\/\/lapidarygrinder.com\/collections\/diamond-carving-bur\" target=\"_blank\"\u003eDiamond Donut Burrs\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eare uniquely designed with a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eslightly concave profile\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003egradually raised central point\u003c\/strong\u003e, enabling precise carving of rings or donut shapes in pre-drilled stones, crystals, and hard materials. Available in diameters from\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e12mm to 50mm\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith an\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e80# grit\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e6mm shank\u003c\/strong\u003e, these burrs are ideal for\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noreferrer\" href=\"https:\/\/lapidarygrinder.com\/collections\/faceting-polishing-lap\" target=\"_blank\"\u003egemstones\u003c\/a\u003e,\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noreferrer\" href=\"https:\/\/lapidarygrinder.com\/collections\/faceting-polishing-lap\" target=\"_blank\"\u003ejade\u003c\/a\u003e,\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noreferrer\" href=\"https:\/\/lapidarygrinder.com\/\" target=\"_blank\"\u003ecrystal\u003c\/a\u003e,\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noreferrer\" href=\"https:\/\/lapidarygrinder.com\/\" target=\"_blank\"\u003ehardwoods\u003c\/a\u003e,\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noreferrer\" href=\"https:\/\/lapidarygrinder.com\/\" target=\"_blank\"\u003ebone\u003c\/a\u003e,\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noreferrer\" href=\"https:\/\/lapidarygrinder.com\/\" target=\"_blank\"\u003eceramic\u003c\/a\u003e,\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noreferrer\" href=\"https:\/\/lapidarygrinder.com\/\" target=\"_blank\"\u003eglass\u003c\/a\u003e, and\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noreferrer\" href=\"https:\/\/lapidarygrinder.com\/\" target=\"_blank\"\u003estone\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eConcave Design\u003c\/strong\u003e: Creates smooth, uniform rings or donut shapes in pre-drilled materials.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDiamond-Coated Grit\u003c\/strong\u003e:\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noreferrer\" href=\"https:\/\/lapidarygrinder.com\/collections\/diamond-abrasives\" target=\"_blank\"\u003eGalvanically bonded\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003ediamonds ensure rapid material removal and durability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMulti-Size Range\u003c\/strong\u003e: Diameters from 12mm to 50mm for versatile applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e6mm Shank\u003c\/strong\u003e: Compatible with most\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noreferrer\" href=\"https:\/\/lapidarygrinder.com\/collections\/diamond-carving-bur\" target=\"_blank\"\u003erotary tools\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noreferrer\" href=\"https:\/\/lapidarygrinder.com\/collections\/flexible-diamond-disc\" target=\"_blank\"\u003eflexible shafts\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLapidary \u0026amp; Gemology\u003c\/strong\u003e: Carve rings in\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noreferrer\" href=\"https:\/\/lapidarygrinder.com\/collections\/faceting-polishing-lap\" target=\"_blank\"\u003egemstones\u003c\/a\u003e,\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noreferrer\" href=\"https:\/\/lapidarygrinder.com\/collections\/faceting-polishing-lap\" target=\"_blank\"\u003ejade\u003c\/a\u003e, or\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noreferrer\" href=\"https:\/\/lapidarygrinder.com\/\" target=\"_blank\"\u003ecrystal\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eArtisan Crafting\u003c\/strong\u003e: Shape\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noreferrer\" href=\"https:\/\/lapidarygrinder.com\/\" target=\"_blank\"\u003ehardwoods\u003c\/a\u003e,\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noreferrer\" href=\"https:\/\/lapidarygrinder.com\/\" target=\"_blank\"\u003ebone\u003c\/a\u003e, or\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noreferrer\" href=\"https:\/\/lapidarygrinder.com\/\" target=\"_blank\"\u003eceramic\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIndustrial Use\u003c\/strong\u003e: Precision work on\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noreferrer\" href=\"https:\/\/lapidarygrinder.com\/\" target=\"_blank\"\u003eglass\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noreferrer\" href=\"https:\/\/lapidarygrinder.com\/\" target=\"_blank\"\u003estone\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003ecomponents.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGrit\u003c\/strong\u003e: 80# (coarse for rapid shaping).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eShank\u003c\/strong\u003e: 6mm (fits standard rotary tools).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDiameter Options\u003c\/strong\u003e: 12mm, 16mm, 20mm, 26mm, 30mm, 32mm, 36mm, 40mm, 45mm, 50mm.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eWhy Choose Diamond Donut Burrs?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSpecialized Geometry\u003c\/strong\u003e: Unique concave design simplifies ring\/donut carving.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eVersatility\u003c\/strong\u003e: Effective on materials from\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noreferrer\" href=\"https:\/\/lapidarygrinder.com\/\" target=\"_blank\"\u003esoft wood\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noreferrer\" href=\"https:\/\/lapidarygrinder.com\/collections\/diamond-abrasives\" target=\"_blank\"\u003ehardened stone\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEfficiency\u003c\/strong\u003e: Reduces time compared to manual carving methods.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"hanslapidarytool","offers":[{"title":"Default Title","offer_id":41537912799278,"sku":null,"price":42.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0575\/4542\/4942\/files\/Diamond_Donut_Burs_fd62ab68-760f-4791-8640-eb4a7b4831a1.png?v=1757996769","url":"https:\/\/hanslapidarytool.com\/products\/34mm-diamond-donut-bur-400-grit-5pcs","provider":" Hans Lapidary Tool","version":"1.0","type":"link"}