The Draper 16770 1/2" drive extension bar set with wobble end has been manufactured from chrome vanadium steel with a hardened, tempered and micro satin finish. Each extension bar has a knurled ring for extra grip, and a spring loaded ball bearing for a secure socket holding making it easy to use. This model also features a wobble end that allows sockets to be driven at up to 15° to the verticle.
