Features: 1.1/4-inch Hex Shank Prevents Stripping During High Speed Drill Operation 2._x000D_ Super Strong Heat Treated Chrome Vanadium Steel for Normal & Impact 3._x000D_ Use - Sandblasted Finish 4._x000D_ Converts All Power Drills into Speedy Socket Drivers 5._x000D_ Applies to the screwdriver handle or electric Specification: screwdriver tools (hexagonal hole or three jaw chuck can be)_x000D_ driven sleeve is used, can be the original hexagonal side after_x000D_ installation on size into square size, which can be used for the installation of the sleeve, is a good accessories to convert_x000D_ _x000D_ Description_x000D_ Size: inch Length_x000D_ 1/4''*1/4''*50mm--1/4'' shank can be converted into 6.35 mm square_x000D_ 3/8''*1/4''*50mm--1/4'' shank can be converted into 9.53 mm square_x000D_ 1/2''*1/4''*50mm--1/4'' shank can be converted into 12.7 mm square_x000D_ Material: Chrome vanadium steel cr-v_x000D_ Quantity: 1 set(3pcs) PackageList: 3 x Socket Adapter Hex Shank set