7 to 14 Pcs Dry Diamond Drill Bits Set 6mm Vacuum Brazed Core Drill Bit Quick Change Hex Shank for Porcelain Granite Tile Marble

Highlight description:Product name: Dry Diamond Drill BitsMaterial: diamondOverall length: 65.6mmShank size: 6.35mmHole size: 6mm[Easy Cutting] Dry Diamond Drill Bits with Vacuum Brazing Technology allows for easy cutting of hard tile, ceramic, marble and slate at higher temperatures using a dry drill bit. The body diameter is easy to recognize.[Dry Drill Design] Integrated lubricant to help cool and extend the life of the bit, meaning no additional lubricant is needed. Hexagonal shank to avoid collet slippage.[Suitable for Most Electric Drills] 6.35mm (15/64") quick-change hexagonal dry drill bit, can be changed quickly, suitable for most electric drills, rechargeable drills, hand wrenches and driver chucks.[Widely Used] Vacuum brazed diamond bits are suitable for dry drilling granite and marble, masonry, concrete, tile/ceramic, glass, hard plastics and more.