Uxcell 5mm Diamond Glass Hole Saw Core Drill Bits Nickel Plated 2 Pack

Descriptions: Uxcell 5mm Diamond Glass Hole Saw Core Drill Bits Nickel Plated 2 Pack Diamond coating maximizes performance and retains a sharper cutting edge than traditional carbide or bi-metal hole saws. Smooth and exact finish can lower incision resistance drill pressure and increase the sharpness effectiveness of water lubrication. Nickel plating on the bits maximizes tool’s life and provide good resistance to corrosion. Excellent for making clean and precise holes on glass or ceramic and extending drill bits life. Diamond drill bits with clearance hole facilitate the entrance of cooling water and escape of chips and other particles from drilling. Makes drilling process easier. Suitable for processing Stone Tiles Ceramics and Glass etc.. Works better with a electric drill (Not included here). Use Note: Start your hole diagonally make a round trace and then hold drill straight. Please always use lubrication (water) when drill bits are working. Low drill pressure and increased use of water lubrication will extend drill bit life. Not suited for use on concrete or for depths beyond about 1/2 inch.