Features:100 percent 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 or 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 or 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 or 4" 3 or 8" 1 or 2".Specification:Material: chrome vanadium steel CR-V1 or 4" hex shank to 1 or 4" socket 50mm Long1 or 4" hex shank to 3 or 8" socket 50mm Long1 or 4" hex shank to 1 or 2" socket 50mm LongPackage Included:1 x (1 or 4" hex shank to 1 or 4" socket)Socket Adapter1 x (1 or 4" hex shank to 3 or 8" socket)Socket Adapter1 x (1 or 4" hex shank to 1 or 2" socket)Socket Adapter.