Description: 3" AIR CUT OFF TOOL Durable lightweight aluminum housing. Lever lock throttle for safety. Chrome-plated steel guard protects you from sparks at operation. To cut off mufflers and tail pipes quickly and efficiently. Rear exhaust. Parameters: Free speed: 18,000rpm Capacity: 3" Air inlet(PT): 1/4" Air hose (ID):3/8" Avg. air consumption:5.5cfm Working pressure: 90psi Qty per carton: 20pcs Carton meas.: 47x22x39cm