The Drill Chuck Adapter is a must-have tool for any DIY enthusiast or professional. Its threaded adapter is perfect for attaching drill chuck, allowing you to easily switch between using a hammer and a drill. Made with stable materials, this tool is built to last and can withstand long hours of use. The precise design of the conversion adapter ensures stability and safety during operation. Features -Color:As Shown -Material:High-carbon steel -Size:7.00X2.00X2.00cm/2.75X0.79X0.79in -Size:Outer Thread diameter: 12.5mm -Size: Inner thread diameter: 5.5mm -Perfect for individuals who enjoy projects and professionals in the field. - Made from sturdy material, fine workmanship ensures smooth surface and no burr, would not hurt your fingers. -The workmanship is fine, the materials are excellent, and it can be used repeatedly for a long time. -Made of high carbon steel material for increased durability, precision thread and easy installation. -Designed with precision for stable and safe operation.Compatible with a wide range of electric wrenches and pneumatic tools. Package list: 10 x Shank Drill Chuck Adapter 10 x Round Shank Drill Chuck Adapter