Air Motor 0.93 hp HP Running Torque @ Max Pressure 19.5 in-lb 30 cfm Max Air Flow No Load RPM 3 000 RPM Shaft Dia 1/2 in Shaft Length 1.13 in Hub Mounting Port Size 1/4 in NPT CCW Rotation Housing Material Cast Iron and Aluminum Gray Finish 300 RPM RPM @ Max Torque Max Air Pressure 100 psi Keyway Length 1.0 in Overall Length 4.96 in Overall Width 3.97 in Overall Height 3.97 in 0 Degrees to 250 Degrees F Operating Temp Range Includes Muffler