Description of Oudtinx 5PCS 19Mm Diamond Drill
SIZE - 19mmDrilling Diameter, 5.5mm(0.22-inch) Shank Diameter. DIAMOND COATED - Diamond coating enhances the drilling speed, which makes the bit more sharp. NICKEL PLATED SURFACE - Nickel plating surface can extend the service life and enhance the surface corrosion resistance. SPECIAL DESIGN - Side open can remove the waste to keep the drill bit clean. PPLICATIONS - Perfect for drilling glass, ceramics, porcelain, ceramic tile, porcelain tile, limestone, slate, marble, granite, light stone and fiberglass. (Need to be used at a low speed; Always use lubrication (water) when processing, otherwise the hole saw will burn.).