Size: 12mm cutting diameter, 150mm length twist drill with 10mm diameter triangular handle.Material: This product is made of cemented carbide, high hardness, good wear resistance and durability.Design: Two Flute, ensure fast and efficiently remove drilling dust and debris. Rock carbide tip maximizes carbide surface contact for longer bit life. The spiral shank increase cutting speed and prevents slipping.Carbide Tip Point: The 120° cutting point can be easily cut, and it will not shake when drilling through bricks, stones, and concrete.Widely Use: Suitable for Brick, Block, Masonry, Concrete, Ceramic Tile, Cement and Artificial Stone, Wood, Plastic and much more.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: 12mm/0.47inchTotal Length: 203mm/7.99inchDrill Bit Length: 150mm/5.91inchShank Diameter: 10mm/0.39inchPackage Content:2 Pcs x Impact Drill Bit