ITEM NAME:Impact Driver/Drill 1/4inch Hex Hexagon Shank to 3/8inch Socket Adapter Set E5P4 Impact Driver/Drill 1/4inch Hex Hexagon Shank to 3/8inch Socket Adapter Set E5P4 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 (2000 in/lb of torque) The 1/4 hex shank fits all quick change chucks as well as standard drill chucks Product Name : Socket Adapter Material : Chrome Vanadium Steel Hex Socket Size : 10mm / 3/8inch Hex Shank Size : 6.3mm/ 1/4inch Overall Size : 10 x 50mm/ 0.4inch x 2inch (D*L) Color : Gray Weight : 30g Package : 1 x Socket Adapter Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..The 1/4 hex shank fits all quick change chucks as well as standard drill chucks. 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.