3 Pcs Power Screwdriver Driver Socket Bit Adapter Drill 1/4" 3/8" 1/2" Hex Shank Features: Aluminum Alloy Material Suitable for Heavy Duty Impact Drivers Spring Loaded Bearing on for 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" Specifications: Material: Chrome-vanadium Steel Chromium Plating All Sockets Standard 1/4" Hex Shank Size: 1/4 x 1/4 x 65mm length 1/4 " shank can be converted to 6.35mm square head 3/8 x 1/4 x 65.8mm length 1/4 " shank can be converted to 9.4mm square head 1/2 x 1/4 x 68mm length 1/4 " shank can be converted to 12.6mm square head Quantity: 1 Set/3 Pcs Note: It is manual measurement, there may be 1-2mm error,please to understand. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 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