HONJIE Diamond Drill Bits - glass cutting bits Tile Hollow Core Drill Bits Extractor Remover Tools Hole Saws for glass ceramics porcelain ceramic tile 10 Pieces

?Glass hole saw bit: 10-piece set, 0.31-0.39-0.47-0.55-0.63-0.71-0.79-0.86-0.98-1.97inch/8-10-12-14-16-18-20-22-25- 50mm 1. Use high-quality high-density emery particles to ensure high-speed introduction when opening holes, and good wear resistance. 2. The incision design is more sharp and durable, and the opening is smooth. 3. Chip flutes are conducive to rapid chip removal and have a heat dissipation effect. 4. The universal round shank can prevent the drill chuck from slipping, the operation is stable, and the opening is neat.