Klutch Chrome Moly 1/2in.-Drive Deep Impact Socket Set - 29-Pc., SAE/Metric Forged from high-quality chrome molybdenum alloy steel for durability and superior strength Patented sidewall drive sockets apply force to walls of fastener for long life Laser-etched hi-visibility markings &#160;Meets or exceeds ANSI and government torque specs 13 SAE deep sockets from 7/16in. to 1 1/4in.