: Super Strong Heat Treated Chrome vanadium steel for Normal & Impact Drivers. Detent ball on each adapter for socket retention. kindly notice, when using tools with socket adapter, Less than 50 Nm.Size: 1/4 inch , 3/8 inch and 1/2 inch drive adapter each with a 1/4 inch hex /driver bits fits all quick-change drill chucks system as as standard drill chucks. Sockets Snap-On Tightly & ' Off.Application: This adapter set is designed to a securely locked in extension to your existing tool. Provides additional length to reach into a multitude of hard to reach spaces. The spring ball lock ensures a tight fit into the driver head to prevent slipping during use. Specifically machined to fit securely into a hand driver, drill driver or impact wrench.Multifunction: Used in the installation of pneumatic screwdriver, electric screwdriver, pneumatic drill, manual screwdriver and other installation for the hexagonal tool .It is a good accessory for conversion.Colourfull design: Different colour coded rings, easy to pick the right one.color: blue +red +yellowMaterial: Chrome vanadium steelAll Sockets Standard 1/4 inch Hex Size:(1/4 inch hex to 1/4 inch socket)Socket Adapter,length about 65mm(1/4 inch hex to 3/8 inchsocket)Socket Adapter,length about 65mm(1/4 inchhex to 1/2 inch socket)Socket Adapter,length about 72mmPackage Contents:1 X (1/4 inch hex to 1/4 inch socket)Socket Adapter1 X (1/4 inch hex to 3/8 inch socket)Socket Adapter1 X(1/4 inch hex to 1/2 inch socket)Socket Adapter