Description PowermateĆ PX 1/2 in. composite impact wrench is perfect for removing and tightening lug nuts and bolts. This impact wrench features composite housing makes tool 20% lighter than comparable aluminum impact wrench. Efficient twin hammer mechanism provides more power and less vibration than single hammer.Soft-touch grip for firm hold and reduced vibrationBall bearing mounted air motor designed for long life, smooth operationEasy access torque control allows variable torque adjustments with forward and reverse settingsUse with 1/2 in. drive impact sockets