Glass Hole Saw Ceramic Tile Reaming Drill Jade Emery Drill Beads Round Hole Drill Bit

Glass Hole Saw Ceramic Tile Reaming Drill Jade Emery Drill Beads Round Hole Drill Bit instruction: -Nickel-plated and diamond powder coating can provide excellent performance and cutting strength. -Start drilling diagonally weave into a circular braid and then keep the drill straight. Water lubrication is required when drilling. -Used for drilling glass wood ceramic tiles wooden blocks ceramics slate marble granite light stone and other hard surfaces. Size: 16mm 18mm 20mm 25mm 30mm 35mm 40mm 45mm 50mm attention -Reduce drilling speed and low drilling pressure. -Not suitable for concrete or the depth exceeds about 1/2. Specification: Material: Emery Contains: 1X drill bit