{"product_id":"proxxon-diamond-drilling-grinding-bit-1-0mm-no-28230","title":"Proxxon Diamond Drilling \u0026 Grinding Bit — 1.2mm (2 pack)","description":"\u003ch2\u003eProxxon Diamond Drilling \u0026amp; Grinding Bit 1.2mm (No. 28230) — Detail Work on Glass, Ceramic \u0026amp; Stone\u003c\/h2\u003e\n\u003cp\u003eGlass, hard ceramic, porcelain, and stone are exactly the materials that destroy ordinary bits — an HSS or carbide tip skates, chips the surface, or cracks the piece before it ever bites. For fine, delicate work on those materials, you need diamond. The Proxxon No. 28230 is a micro-fine, diamond-coated bit built for precisely that: drilling, grinding, shaping, and engraving the hardest, most brittle surfaces, cleanly.\u003c\/p\u003e\n\u003cp\u003eIts spherical diamond-coated tip abrades rather than punches, so it works into glass, ceramic, porcelain, and stone up to granite hardness without the chipping and cracking that ruin detail pieces. At just 1.2mm it's made for precision — tile and glass repair, mosaic, jewelry, lapidary, and any job that calls for a tiny, controlled cut in hard material. The 2.35mm (3\/32\") shank is the standard size for rotary and micro tools, so it drops straight into Proxxon MICROMOT collets and other rotary tools.\u003c\/p\u003e\n\u003cp\u003eLike any diamond bit on brittle material, it rewards patience: run it around 2,000 RPM with water or coolant on a drill press, and it cuts clean and lasts. It comes as a 2-pack so you have a spare for the next job. This bit is also one of the diamond consumables in the \u003ca href=\"\/products\/proxxon-distar-cut-polish-essentials-kit-lwb-a-wp-a\"\u003eProxxon-DiStar Cut \u0026amp; Polish Essentials Kit\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhy Tile Pros Choose It\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCuts what other bits can't:\u003c\/strong\u003e Glass, ceramic, porcelain, and stone up to granite\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiamond-coated tip:\u003c\/strong\u003e Abrades cleanly instead of chipping or cracking\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicro-fine 1.2mm:\u003c\/strong\u003e For precise detail, repair, and engraving work\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal 2.35mm shank:\u003c\/strong\u003e Fits Proxxon MICROMOT and standard rotary tools\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRuns wet:\u003c\/strong\u003e Coolant keeps cuts clean and extends bit life\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-pack:\u003c\/strong\u003e A spare on hand for the next job\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall enough to fix the mistake nobody else can:\u003c\/strong\u003e Detail work, handled\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePro tip:\u003c\/strong\u003e Let the diamond do the work — light pressure, ~2,000 RPM, and a steady drip of water. Forcing a brittle material is how you crack it; ease the tip in, keep it cool, and back off at breakthrough. A drill press gives you the control a fine bit like this needs.\u003c\/p\u003e","brand":"Proxxon","offers":[{"title":"Default Title","offer_id":67587356852469,"sku":"28230","price":9.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0316\/2731\/3284\/files\/28230_c5983670-fec4-40b2-adad-2bfc7c09e994.webp?v=1790598363","url":"https:\/\/www.tileprosource.com\/products\/proxxon-diamond-drilling-grinding-bit-1-0mm-no-28230","provider":"Tile ProSource","version":"1.0","type":"link"}