{"product_id":"diamond-bur-sphere-2","title":"Proxxon Diamond Bur — Sphere 5\/64\", 2-Pack (No. 28222)","description":"\u003cp\u003e\u003cstrong\u003eA sphere-shaped diamond bur for concave surface grinding, shaping, and finishing with Proxxon Micromot rotary tools.\u003c\/strong\u003e High-quality, long-wearing diamond burs with an even diamond coating over a stainless steel core. At 5\/64\" diameter, this is the larger of the two sphere sizes — ideal for grinding broader concave surfaces, internal radii, and bowl-shaped recesses. Supplied in a 2-pack.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eShape: sphere (ball)\u003c\/li\u003e\n  \u003cli\u003eDiameter: 5\/64\" (approx. 2mm)\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  \u003cli\u003eQuantity: 2 burs per pack\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. 28222\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\/9633235337440\"\u003eDiamond Bur — Sphere 1\/32\", 2-Pack (No. 28212)\u003c\/a\u003e — smaller sphere for fine detail work and tight concave areas\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/9633235239136\"\u003eDiamond Bur — Cylinder 5\/64\" × 13\/64\" (No. 28240)\u003c\/a\u003e — cylinder shape for straight surface grinding\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/9633235206368\"\u003eDiamond Bur — Lenticular Wheel 13\/64\" (No. 28250)\u003c\/a\u003e — disc shape for engraving lines and edge grinding\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":51229998514400,"sku":"28222","price":7.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/3943\/1904\/files\/28222_5383c449-8bf0-4e22-b80d-0629f99ab59b.jpg?v=1774616234","url":"https:\/\/protoolhaus.com\/products\/diamond-bur-sphere-2","provider":"Pro Tool Haus","version":"1.0","type":"link"}