Features 1、Features: 100% quality and Brand new. Suit for pneumatic screw driver,electric screw driver,pneumatic drill,electric drill,pistol drill etc. Chrome Vanadium Steel Suitable for Heavy Duty Impact Drivers. Spring Loaded Ball Bearing on Head Holds Sockets Se 2、Chrome Vanadium Steel Suitable for Heavy Duty Impact Drivers 3、Spring Loaded Ball Bearing on Head Holds Sockets Securely 4、Change Your Hand Sockets Set Into A Driven Socket Set 5、This set is perfect for your impact driver or drill, and allows you to replace your ratchet with a power tool Specification Features: 100% quality and Brand new. Suit for pneumatic screw driver,electric screw driver,pneumatic drill,electric drill,pistol drill etc. Chrome Vanadium Steel Suitable for Heavy Duty Impact Drivers. Spring Loaded Ball Bearing on Head Holds Sockets Securely. Change Your Hand Sockets Set Into A Driven Socket Set. This set is perfect for your impact driver or drill, and allows you to replace your ratchet with a power tool. Specifications: Hexagonal Shank:1/4", socket:1/4",Length: 50mm Package Included: 1 x Socket Adapter Package List