{"product_id":"proxxon-diamond-bit-28234-ball-3mm-glass-stone","title":"Proxxon Diamond Drilling \u0026 Grinding Bit - 3.2mm Ball, 2-Pack (No. 28234)","description":"\u003cp\u003e\u003cstrong\u003eA ball-shaped diamond-coated drilling and milling bit for precision work in glass, stone, and granite with Proxxon MICROMOT rotary tools and drill presses.\u003c\/strong\u003e The diamond coating delivers the hardness needed to drill and mill through hard, brittle materials that conventional bits cannot penetrate. Recommended for use on a drill press at 2,000 RPM with additional coolant to prevent overheating and bit damage. Supplied in a 2-pack.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Ball\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 3.2mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank diameter:\u003c\/strong\u003e 2.35mm (3\/32\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e Diamond\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 2 bits per pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended speed:\u003c\/strong\u003e 2,000 RPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant:\u003c\/strong\u003e \u003cstrong\u003eRequired\u003c\/strong\u003e for use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart No.:\u003c\/strong\u003e 28234\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBest Suited For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGlass\u003c\/li\u003e\n\u003cli\u003eStone (including granite)\u003c\/li\u003e\n\u003cli\u003eCeramics and porcelain\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e For best results, use on a drill press with coolant at 2,000 RPM. Not recommended for freehand use at high speeds without coolant.\u003c\/p\u003e\n\n\u003ch2\u003eWorks Well With\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/proxxon-ibs-a-cordless-drill-grinder\"\u003eProxxon IBS\/A Cordless Drill\/Grinder\u003c\/a\u003e – Compatible MICROMOT rotary tool for lower-speed applications\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/proxxon-diamond-drilling-grinding-bit-1-0mm\"\u003eProxxon Diamond Drilling \u0026amp; Grinding Bit 1.0mm\u003c\/a\u003e – Finer bit for smaller holes in the same hard materials\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/proxxon-diamond-drilling-grinding-bit-1-5mm\"\u003eProxxon Diamond Drilling \u0026amp; Grinding Bit 1.5mm\u003c\/a\u003e – Step up for slightly larger holes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/proxxon-diamond-twist-drills-0-8mm-1-2mm\"\u003eProxxon Diamond Twist Drills 0.8mm + 1.2mm\u003c\/a\u003e – Twist drill format for cleaner entry holes in glass and ceramic\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/distar-water-guard-kit-for-proxxon-lwb-a\"\u003eDistar Water Guard Kit for Proxxon LWB\/A\u003c\/a\u003e – Coolant delivery system; recommended for safe use of this bit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFurther Reading\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/how-to-drill-through-tile-without-cracking\"\u003eHow to Drill Through Tile Without Cracking It\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/how-to-drill-porcelain-tile-without-cracking-proxxon-ibsa-distar-rocket\"\u003eHow to Drill Clean Holes in Porcelain Tile Without Cracking It – Proxxon IBS\/A + Distar Rocket\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/engraver-vs-porcelain-tile-how-to-cut-holes-without-chipping\"\u003eEngraver vs. Porcelain Tile: How to Cut Holes Without Chipping\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eReturns can only be accepted for unused product in its original packaging. A copy of the original packing slip or invoice is required. For warranty claims please call 1-877-776-9966. See our full \u003ca href=\"\/pages\/refund-policy\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ereturn and refund policy\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eCalifornia Residents: \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eProp 65 Warning\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eBuying for a crew?\u003c\/strong\u003e \u003ca href=\"\/pages\/contact\" title=\"Ask about contractor pricing\"\u003eAsk about contractor pricing →\u003c\/a\u003e\u003c\/p\u003e","brand":"Proxxon","offers":[{"title":"Default Title","offer_id":52387146006811,"sku":"28234","price":9.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/2495\/0811\/files\/28234.jpg?v=1782158050","url":"https:\/\/colossaldiamondtools.com\/products\/proxxon-diamond-bit-28234-ball-3mm-glass-stone","provider":"Colossal Diamond Tools, LLC","version":"1.0","type":"link"}