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: 10mm/0.39inchTotal Length: 203mm/7.99inchDrill Bit Length: 150mm/5.91inchShank Diameter: 8mm/0.31inchPackage Content:2 Pcs x Impact Drill Bit