{"product_id":"diamond-drilling-grinding-bit-3","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\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eShape: ball\u003c\/li\u003e\n  \u003cli\u003eDiameter: 3.2mm\u003c\/li\u003e\n  \u003cli\u003eShank diameter: 2.35mm (3\/32\")\u003c\/li\u003e\n  \u003cli\u003eCoating: diamond\u003c\/li\u003e\n  \u003cli\u003eQuantity: 2 bits per pack\u003c\/li\u003e\n  \u003cli\u003eRecommended speed: 2,000 RPM\u003c\/li\u003e\n  \u003cli\u003eCoolant: \u003cstrong\u003erequired\u003c\/strong\u003e for use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eBest suited for drilling and milling in:\u003c\/strong\u003e\u003c\/p\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\u003cp\u003eProxxon No. 28234\u003c\/p\u003e\n\n\u003chr\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\/9633228882144\"\u003eBench Drill Press TBM 115\u003c\/a\u003e — recommended host tool for controlled speed and coolant drilling\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/9633228423392\"\u003eProfessional Rotary Tool IBS\/E\u003c\/a\u003e — compatible Micromot rotary tool for lower-speed applications\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/9633235239136\"\u003eDiamond Bur — Cylinder 5\/64\" × 13\/64\" (No. 28240)\u003c\/a\u003e — diamond bur for grinding and finishing the same hard materials\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/9633235304672\"\u003eDiamond Bur — Sphere 5\/64\", 2-Pack (No. 28222)\u003c\/a\u003e — ball-shaped diamond bur for concave surface work\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/9633232290016\"\u003eDiamond Cut-Off Wheel 1-1\/2\" (No. 28846)\u003c\/a\u003e — diamond cutting disc for the same hard materials\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/9633232322784\"\u003eDiamond Cut-Off Wheel 3\/4\"\u003c\/a\u003e — smaller diamond cutting disc for detail cuts\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":51229998481632,"sku":"28234","price":8.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/3943\/1904\/files\/28234.jpg?v=1774616233","url":"https:\/\/protoolhaus.com\/products\/diamond-drilling-grinding-bit-3","provider":"Pro Tool Haus","version":"1.0","type":"link"}