This Teng Tools Speed Brace has a crank-shaped handle that is used to drive sockets. It is ideally used instead of a ratchet in contexts when a lot of turning (i.e a lot of fasteners) is needed, where it can save substantial time. The speed brace requires ample room to swing the handle and ample access to the fastener heads. Used occasionally in automotive repair or job shop work. This Speed Brace has a 3/8 inch square drive. It is manufactured from chrome vanadium steel for stength and durability, and has a satin chrome finish. For comfortable grip, the speed brace has a plastic handle. Length: 380mm (15 inch).