The tool kit is made of high-quality materials and has the functions of strength, durability and anti-corrosion protection.This adapter turns your electric drill impact drive into a multi-function drill nut drive set.This set includes 6pcs, 3 inches: 1/4 inch, 3/8 inch and 1/2 inch; 6 inches: 1/4 inch, 3/8 inch and 1/2 inch.This unit is perfect for your impact drive or rig and allows you to replace your ratchet and power tool with a 1/4" hex shank for all quick change chucks as well as standard drill chucks.This impact socket adapter will save you valuable time in replacing the power drill compared to conventional manual nut drivers.Socket Adapter only, other accessories demo in the picture is not included.Specifications:Material: High Carbon SteelLength: 150mm/5.9in,1/4in x 65mm,3/8in x 65mm,1/2in x 73mmColor: As pictures shownQuantity: 6pcs/setNote:Please allow 0-1cm error due to manual measurement. pls make sure you for not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package Includes:3 x 150mm Socket Adapter3 x 65-73mm Socket Adapter