Constructed from high-alloy German chrome vanadium steel with stable box-joint design and pinch guard, 10 in. Cobra® QuickSet locks in opening position until user resets position. Once pushbutton mechanism locks onto application, it stays locked in that position to facilitate for repetitive use. Hex-shaped gripping surface with hardened teeth (61 HRC) fits around any round, square, hex, or flat object, while thin head can be used in hard-to-reach places. Choice of handles is available.