CHMORA Multifunctional Drill Bits Wall Ceramic Glass Punching Hole 5pcs Working Set

8mm cutting diameter: 66mm / 2.6in Provides smooth and accurate drilling in tile glass brick wall wood and so on. 12mm cutting diameter: 9mm / 0.4in 10mm cutting diameter: 34g / 1.2ounce 12mm cutting diameter: 120mm / 4.7in U-shaped spiral is smooth and flat and the drilling is smoother. 6mm cutting diameter: 100mm / 3.9in 8mm cutting diameter: 6mm / 0.2in 8mm cutting diameter: 27g / 1.0ounce 8mm cutting diameter: 110mm / 4.3in 6-12mm 5pcs cutting diameter: 6mm 6mm 8mm 10mm 12mm The design of shank makes the clamping more tight and does not slip. 12mm cutting diameter: 51g / 1.8ounce 10mm cutting diameter: 120mm / 4.7in Strong toughness and wear resistance can be installed in electric drills. Made of fine quality material low resistance high hardness improving work efficiency. Feature Color: red+silver 6mm cutting diameter: 4.5mm / 0.2in 10mm cutting diameter: 70mm / 2.8in 12mm cutting diameter: 75mm / 3.0in 10mm cutting diameter: 7mm / 0.3in 6mm cutting diameter: 55mm / 2.2in 5 x 6-12mm Drill Bit 6mm cutting diameter: 11g / 0.4ounce Material: alloy