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 – Slotted edge makes it more sharp, works more efficient. Side open can remove the waste to keep the drill bit clean.
APPLICATIONS – 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.)