ITEM NAME:5Pcs Triple-cornered Handle Alloy Multifunctional Drill Bits 6-12Mm Blade D K4G4 5Pcs Triple-cornered Handle Alloy Multifunctional Drill Bits 6-12Mm Blade D K4G4 1. The head is of the special process technology, high hardness and small incision resistance 2. High efficiency spiral, smooth and flat which make it smoother to drill 3. The design of triangular handle make it more fastening to clamp and not easy to slip. 4. Widely used in ceramic tile, glass, brick wall, wood, etc. 5. Can be used in the hand electric drill, table drill, etc. Specification: 6mm/8mm/10mm/12mm Shank diameter: 5mm/6.5mm/8.5mm/8.5mm Length: 100mm/110mm/120mm/123mm colour:Yellow + silver Material:alloy Package Contents: 5 * Drills.Specification: 6mm/8mm/10mm/12mm. Can be used in the hand electric drill, table drill, etc. High efficiency spiral, smooth and flat which make it smoother to drill. The design of triangular handle make it more fastening to clamp and not easy to slip.