{"product_id":"79mm-diamond-core-drill-bit-tile-stone-concrete","title":"79mm Sintered Diamond Core Drill Bit 2pcs for Granite, Tile, Concrete","description":"\u003cp\u003eOur \u003cstrong\u003e79mm Sintered Diamond Core Drill\u003c\/strong\u003e is a professional-grade metal-bonded diamond drilling tool for precision core drilling in stone, glass, ceramic, gemstones, and hard minerals. Metal-bonded diamond matrix continuously exposes fresh diamonds as it wears. Sold in a \u003cstrong\u003e2-piece set\u003c\/strong\u003e.\u003c\/p\u003e\u003ch2\u003eCompatible Materials\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eNatural stone — marble, granite, slate, sandstone, agate, jasper\u003c\/li\u003e\n\u003cli\u003eGlass — art glass, fused glass, plate glass, stained glass\u003c\/li\u003e\n\u003cli\u003eCeramics — technical ceramics, porcelain tile, fired clay\u003c\/li\u003e\n\u003cli\u003eGemstones — hard minerals, lapidary stones, rough specimens\u003c\/li\u003e\n\u003cli\u003eEngineered stone — quartz composite, terrazzo, concrete\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eUsage Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAlways use \u003cstrong\u003ewet\u003c\/strong\u003e — water cooling prevents overheating and maximizes drill life\u003c\/li\u003e\n\u003cli\u003eUse low to medium speed: \u003cstrong\u003e300–1,200 RPM\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eApply steady, moderate pressure without forcing\u003c\/li\u003e\n\u003cli\u003eUse a water swivel adaptor for continuous flow through the hollow shank\u003c\/li\u003e\n\u003c\/ul\u003e","brand":" Hans Lapidary Tool","offers":[{"title":"Default Title","offer_id":42330787774510,"sku":null,"price":130.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/hanslapidarytool.com\/products\/79mm-diamond-core-drill-bit-tile-stone-concrete","provider":" Hans Lapidary Tool","version":"1.0","type":"link"}