3/4 inch Drive Heavy Duty Professional Quality 72 teeth Ratchet 72 teeth gives a working arc of just 5 degrees Twist reverse action for changing the rachet direction with one hand Socket retainer and quick release in the ratchet head for added safety Compact head design permits use in confined areas Rubber handle for increased comfort Chrome Vanadium All Teng Tools sockets and accessories are individually marked and manufactured from high quality chrome vanadium steel to comply with the latest DIN and ISO standards.