Diamond Core Drill Bits Set SANLEETEK Hole Saw Kit 11pcs (6/6/8/25/35/50/68mm+10mm Finger Bit+50mm Beveling Chamfer Bit+115mm Blade+Adapter) Ceramic Tile Porcelain Marble Granite M14 Thread

【SpecIfication】11pcs in total:7pcs 6/6/8/25/35/50/68mm Drill Bits+1pc 10mm Finger Bit+1pc 50mm Beveling Chamfer Bit+1pc 115mm Diamond Blade+1pc Hex Shank Adapter 【Application】Widely use for dry drilling/beveling/enlarging/shaping holes in ceramic tile porcelain marble granite, quartz 【High Performance】Vacuum Brazed technology provides high efficient working performance, faster drilling speed and longer service Life 【Unique Detail】The inside of 6-10mm drill bits are filled with cooling wax, keep the bits cool and lubricated for dry drilling. The design of the U-groove tooth shape above 20mm is sharper, facilitating the discharge of debris 【Recommended Machine】Fits on M14 thread angle grinder. Recommended speed 6000RPM, maximum speed 11000RPM. If you want to use electric drill or other machine, you can use Adapter in the package. Minimum RPM: 2000; Faster the RPM, Longer the Working Life