Improved oil bath Dyna-Pact clutch delivers higher performance and extended durability. Differential regulator allows the operator to match the required power to the job. Handle exhaust directs air away from the work piece and operator. Integral 360º air inlet swivel keeps air hose from being twisted and kinked. Teasing throttle design for precise control. Applications: transmissions, exhaust systems, body shops and general repair in the 3/8" range.