Eachine1 3pcs 6 8 10mm Hex Ceramic Glass Tiles Granite Drill Bits Set

Descriptions Those drill bits are made of hard alloy steel, which is widely applied to holes drilling with mables, granites, bricks, tiles and so forth. 3-piece set at a fair price is recommended. Specifications Model Size (mm) Length (mm) LA111206 6 70 LA111208 8 80 LA111210 10 85 Materials: hard alloy steel Joints: 7mm diagonal diameter of hex joint fits electric drills and electric screwdrivers. Notes Just fit the bit on an electric hand drill to be ready. Need to add cool water for cooling while operating. To be slow from the beginning and to be steadily slow when about to drill through. Please allow a bit manual measuring errors. Warnings Please wear dust mask and goggle when in process. Package included 1 x 6mm Ceramic Drill Bit 1 x 8mm Ceramic Drill Bit 1 x 10mm Ceramic Drill Bit