DENIOS' Non-sparking 1/2" Drive 21 Pc SAE Socket Set makes the shop safer for technicians working close to flammable gases, vapors, liquids, or dust. These aluminum bronze tools reduces the risk of fires and are corrosion resistant, with the set featuring 5/16"–1-1/4" sockets, a ratchet, bars, and an anti-static case. The set measures 16" long by 20.3" deep and 5.5" high and weights 18 lbs.