25mm Diamond Grit Hole Saw Drill Bit 2Pcs for Tile Glass

Description:Designed for drilling 25mm diameter holes.
Nickel-plated hole saw drill bit with a diamond dust coating offers superior performance and cutting strength.
Cut clean and round holes to a depth of approximately 30mm.
Excellent for making clean and accurate hole on glass, tile, marble and other fragile materials.
Always use lubrication (water), otherwise the diamond coated drill bit will burn.
Start your hole diagonally, make a round trace and then hold drill straight.
Works better with an electric drill (Excluding in this item).