KMECOMM 12MM Diamond Drill Bits Hole Saws 10Pcs 12mm Diamond Coated Core Drill Bits Hole Saw Glass Tile Ceramic Marble
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Designed for drilling 12mm diameter holes.Nickel-plated hole saw drill bit with a diamond dust coating offers superior performance and cutting strength.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).
