Diamond Core Drill Bits Set 11pcs（6/8/10/20/25/28/32/35/45/50/65mm) Hole Saw Kit with Triangle Shank for Porcelain Tile Ceramic Granite Marble SANLEETEK

【Specification】11pcs in total: 11pcs 6/8/10/20/25/28/32/35/45/50/65mm Triangle Shank Drill bits 【Application】Widely use for dry or wet drilling/beveling/enlarging/shaping holes in ceramic tile porcelain marble granite, quartz 【High Performance】Advanced vacuum brazed technologuy and high-quality diamond grain imporve the performance and lifetime 【Features】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】Suitable for hand drill, bench Drill. Minimum RPM: 2000; Faster the RPM, Longer the Working Life.