Neiko 03715B 1/2" Torque Multiplier Power Wrench, Cr-Mo / Cr-Va Steel | 1100 Foot-Pound Provides added torque to cleanly bust rusted or frozen fasteners over the rated force that standard wrenches can produce Chromium Molybdenum head and Chrome Vanadium bar are designed for durability, long tool life, and the shock of extremely high torque Drive input rated at 365 foot-pound maximum and drive output of 1100 foot-pound; for field, automotive, construction, industrial, plumbing 13-3/4 torque enhancer includes a small but powerful 2.9 head that slips into tight and hard to reach spaces Set includes a hard plastic case for carrying and storage