1、100% quality and Brand new. Chrome Vanadium Steel Suitable for Heavy Duty Impact Drivers. 2、Spring Loaded Ball Bearing on Head Holds Sockets Securely. Suitable for Quick Change 1/4" Chuck Systems or Directly into Drill Chuck. 3、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. 4、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. 5、Socket Bit Adapter Drill Nut Driver Power Extension Bar 3pc Set 1/4" 3/8" 1/2". 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