Long known as the workhorse of the truck tire industry. Rocking dog clutch for smooth operation and extreme durability. Teasing throttle for easy bolt starting . Convenient reverse valve for easy directional changes. Choice of professional mechanics for high volume tire work on trucks, buses and heavy equipment Applications: high volume tire work on trucks, buses and heavy equipment. Working torque: 150-900 ft./lbs.; maximum torque: 1400 ft./lbs.; free speed: 4,200 RPM; average air consumption: 10 cfm; air inlet thread: 1/2" NPTF; minimum hose size: 1/2"; sound dBA: 110; length: 15.5"; weight: 27 lbs.