ITEM NAME:2x Impact Driver Drill 1/4 inch to Hex Shank 1/2 inch Chuck Socket Adapter E4N8 2x Impact Driver Drill 1/4 inch to Hex Shank 1/2 inch Chuck Socket Adapter E4N8 Spring Loaded Ball Bearing on Head Holds Sockets Securely. Suitable for Quick Change 1/4inch 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). Color : Gray Product Name : Power Drill Socket Adapter Material : Chrome Vanadium Steel Hex Socket Size : 12.5mm / 1/2 inch Hex Shank Size : 6.5mm/ 1/4 inch Overall Size : 12.5 x 50mm/ 0.5 x 2 inch (D*L) Weight : 66g Package : 2 x Power Drill 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.