{"product_id":"diamond-bur-cylinder","title":"Proxxon Diamond Bur — Cylinder, 5\/64\" × 13\/64\" (No. 28240)","description":"\u003cp\u003e\u003cstrong\u003eA cylinder-shaped diamond bur for precision shaping, grinding, finishing, and engraving with Proxxon Micromot rotary tools.\u003c\/strong\u003e High-quality, long-wearing diamond burs with an even diamond coating over a stainless steel core — delivering uniform cutting performance across a wide range of hard materials. The cylinder profile provides consistent flat contact along straight surfaces, edges, and internal walls.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eShape: cylinder\u003c\/li\u003e\n  \u003cli\u003eDimensions: 5\/64\" × 13\/64\" (approx. 2 × 5mm)\u003c\/li\u003e\n  \u003cli\u003eShank diameter: 2.35mm (3\/32\")\u003c\/li\u003e\n  \u003cli\u003eCoating: even diamond over stainless steel core\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eSuitable materials:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGlass and ceramics\u003c\/li\u003e\n  \u003cli\u003ePorcelain\u003c\/li\u003e\n  \u003cli\u003eStones and semi-precious stones\u003c\/li\u003e\n  \u003cli\u003eNon-ferrous metals\u003c\/li\u003e\n  \u003cli\u003eSteel (including chrome-cobalt alloy)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eProxxon No. 28240\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003cp\u003e\u003cstrong\u003eOther diamond bur shapes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/9633235304672\"\u003eDiamond Bur — Sphere 5\/64\", 2-Pack\u003c\/a\u003e — ball shape for concave surfaces and internal radii\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/9633235337440\"\u003eDiamond Bur — Sphere 1\/32\", 2-Pack\u003c\/a\u003e — smaller ball shape for fine detail work\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/9633235206368\"\u003eDiamond Bur — Lenticular Wheel 13\/64\"\u003c\/a\u003e — disc shape for edge grinding and engraving\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWorks Well With:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/9633228423392\"\u003eProfessional Rotary Tool IBS\/E\u003c\/a\u003e — primary compatible Micromot rotary tool\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/9633227276512\"\u003eProxxon AC Adapter NG 5\/E with Electronic Speed Control (No. 38704)\u003c\/a\u003e — variable speed bench power for controlled diamond grinding\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/9633227243744\"\u003eProxxon AC Adapter NG 2\/S (No. 38706)\u003c\/a\u003e — basic bench power supply for Micromot tools\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/9633232322784\"\u003eDiamond Cut-Off Wheel 3\/4\"\u003c\/a\u003e — diamond cutting disc for the same hard materials\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/9633232290016\"\u003eDiamond Cut-Off Wheel 1-1\/2\"\u003c\/a\u003e — larger diamond cutting disc\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/9633227800800\"\u003eComplete Glass Engraving Set — GG 12 (No. 38635)\u003c\/a\u003e — dedicated glass engraving tool and bit set\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eReturns can only be accepted for unused product in its original packaging. In addition to the returned item\/items, a copy of the original packing slip or invoice is required. If proper paperwork is missing, PROXXON Inc. will not issue a credit. For warranty claims please call 1-877-776-9966. Please see our return and refund policy \u003ca href=\"\/pages\/refund-policy\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ehere\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cspan class=\"js-reveal\" data-reveal-target=\".js-reveal-container\"\u003eCalifornia Residents Prop 65 Information\u003c\/span\u003e\n\u003cdiv class=\"js-reveal-container\" data-reveal-mode=\"slide\"\u003e\n\u003cbr\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1643\/2529\/files\/exclamation-mark-24144_large.png?v=1511288737\" alt=\"\" width=\"16\" height=\"14\" border=\"0\" align=\"left\" style=\"margin: 6px 6px 0 0;\"\u003eWARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e.\u003c\/div\u003e","brand":"Proxxon","offers":[{"title":"Default Title","offer_id":51229998448864,"sku":"28240","price":4.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/3943\/1904\/files\/28240_88d740db-3a6a-49dc-b455-5b723e035def.jpg?v=1774616232","url":"https:\/\/protoolhaus.com\/products\/diamond-bur-cylinder","provider":"Pro Tool Haus","version":"1.0","type":"link"}