General description This professional-quality Draper 770-LA socket set includes 7/16-inch and 1/2-inch square drive Elora bi-hexagon sockets made from hardened, tempered, and chrome-plated chrome vanadium steel for durability and corrosion resistance. The sockets feature a chamfered end for easy and secure nut engagement and a hole with a spring-loaded ball for driving accessories. They are designed to meet industry standards and are sold loose. Technical specifications Material: Chrome vanadium steel Finish: Chrome plated Standards: Generally manufactured and tested according to DIN3122 and ISO3315 Compatibility and accessories Compatible with standard drive accessories Designed for use with various driving tools and accessories that fit the spring-loaded ball feature Installation Insert the socket onto the compatible drive tool Ensure the spring-loaded ball engages securely with the accessory Usage Use with compatible ratchets or drive tools for tightening or loosening nuts and