Description:- This product is made of Carbide Tip material with black oxidized finish.- Universal triangular shank makes the drill bit easy to insert and held tightly. Suitable for electric drills.- Suitable for drilling holes in metal, wood, plastic, cast iron, tile, glass, ceramic and stainless steel- Great replacement for your dull drill bit to improve work efficiency.Specification:Cutting Diameter: 8mm/0.31inchTotal Length: 180mm/7.09inchDrill Bit Length: 130mm/5.12inchShank Diameter: 7mm/0.28inchPackage Content:1 Pcs x Impact Drill Bit