Tremendous power and longer life make this wrench the popular choice of professional mechanics for exhaust systems, air conditioning, radiators, body shop, and bench work. Still the most powerful 3/8” pistol-grip on the market, it offers all the advantages of the Single Hammer Impact Mechanism for removing and replacing bolts up to 7/16” without a struggle. Power up to 180 ft.-lbs. Unaffected by air pressure changes. More torque, less vibration. Pistol-style yet extremely compact and lightweight. Built-in power regulator prevents over-torquing. Handle exhaust.