The adapter is a versatile tool that allows you to easily using an electric hammer and a water drill. It features a precise design for stable and safe use, and is made of sturdy materials for durability. Including round shank and shank, it is compatible with various types of electric wrenches. 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 -The threaded adapter for drill chuck provides a convenient and versatile solution for converting a drill chuck into a water drill chuck. -The precise design of the adapter ensures stability and safety during operation, allowing for accurate drilling and reducing the risk of accidents. -The adapter features multiple interfaces, allowing it to be compatible with different tools. this versatility makes it a practical choice for various drilling application. -The convenient thread function of the adapter allows for easy screw tightening and loosening. this feature enhances efficiency and saves time during drilling tasks. -Convenient for you to carry and store, excellent texture, will not rust easily, and has a good practicality. Package list: 8 x Shank Drill Chuck Adapter 8 x Round Shank Drill Chuck Adapter