ITEM NAME:5pcs Round Shank Holesaw 6mm Drill Bit Cutter Set Tile Ceramic Glass Marble Description: Perfect for drilling holes in tiles, ceramic or wall mirrors Strong toughness and wear resistance, can be installed in the hand drill, electric drill. Small cutting resistance, improve the trepanning speed Provide smooth, accurate drilling in ceramic tile, marble, china, mirrors and glass High quality car.Provide smooth, accurate drilling in ceramic tile, marble, china, mirrors and glass. Strong toughness and wear resistance, can be installed in the hand drill, electric drill. 6mm: Total length: Approx.