Features: 100% quality and Brand new. Chrome Vanadium Steel Suitable for Heavy Duty Impact Drivers. Spring Loaded Ball Bearing on Head Holds Sockets Securely. Suitable for Quick Change 1/4 Chuck Systems or Directly into Drill Chuck. Change Your Hand Socket 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. These impact ready adapters are rated for the most demanding of applications. The 1/4 hex shank fits all quick change chucks as well as standard drill chucks. Socket Bit Adapter Drill Nut Driver Power Extension Bar 3pc Set 1/4 3/8 1/2. Specification: Material: chrome vanadium steel CR-V 1/4 hex shank to 1/4 socket 50mm Long 1/4 hex shank to 3/8 socket 50mm Long 1/4 hex shank to 1/2 socket 50mm Long Package Included: 1 x (1/4 hex shank to 1/4 socket)Socket Adapter 1 x (1/4 hex shank to 3/8 socket)Socket Adapter 1 x (1/4 hex shank to 1/2 socket)Socket Adapter