out this item 【High Quality】 Impact Grade Socket Adapter Set is made of Heat-treated Chrome Vanadium Steel with black phosphate finish. So socket drill adapters feature rust & corrosion resistance and excellent hardness performance. 1/4 to 1/2 socket adapters withstand max torque of 72n/m. Meet industrial or mechanical use. 【3 Specifications】 6 pieces 3 size drill socket adapters: 1/4", 3/8", 1/2". Solve the problem that you can't find proper adapters for various drive sockets. Great for Automotive Mechanic Vehicle Repairs, the DIY, household maintenance, and most general repairs. 【Features】 Sturdy spring loaded detent ball can prevent driver head from slipping, which makes your work completed quickly and safely. The 1/4" Shank will fit all quick change systems and standard drill chucks, it is ideal for both professionals and DIYers. 【Wide Application】 Socket adapter for drill are used in the installation of pneumatic screwdriver, electric screwdriver, pneumatic drill, manual screwdriver and other installations for the tool. A good accessory for Universal Socket, Reducer Set, Universal Joint Set...