The 951 series of spinner driver hex keys feature a sliding T-handle that turns into an L-handle for maximum torque, then back to a T-handle for quick fastener spinning. All three ends (extended end plus both ends of the handle) have the same SAE (fractional inch) size male hex drive. The sliding bar can be stopped in the required position throughout the length with a safety catch to prevent the bar from slipping out. Designed and manufactured in Italy, this alloy steel T-handle allen wrench has a wide range of uses including automotive car repair, appliance repair, furniture assembly, bicycle repair, and mechanical repair. The sliding T handle hex key is ideal for both industrial and automotive professionals as well as home-owners. This 1/4" hex end t-handle has an overall length of 9.05" with a 4.29" long sliding handle.