Straight Nose cone:Working pressure: 0.3MPa (4-hole);0.25MPa (2-hole) (Measure meter is installed at the end of air motor to measure the air pressure).Revolution: about 22000-27000r/min (adjustable between clockwise or anticlockwise)Noise: ≤68dBAir consumption: about 56L/miRatio: 1:1Max speed of contra angle: 25000rpm/min.For any lab or E-type motors