The Swivel Handle can be used as a driving tool for manually operated sockets to tighten nuts and bolts located at awkward places, unapproachable by standard driving tools. All the driving handles are designed with adequate length to provide torque as per its size. In no case pipe etc are to be used for additional leverage. It is manufactured in 1/4" (6.35mm), 3/8" (9.5mm), 1/2" (12.7mm), 3/4" (19mm), and 1" (25.4mm) square drives.