Features: Low vibration levels MM, MN, MO air motor models are equipped with a silencing system that reduces the noise levels Highly effective due to compact size, high power output and low air consumption Designed using materials and processes that minimize the effects on the environment Drive shaft diameter: all drive shafts include a UNI 6604 Form A key slot 24mm for MO Specs: SKU: MO1200R Model Number: MO1200R Output Shaft Type: Smooth Output Shaft Torque at Max. Power Imperial: 11.51 lbf.in Metric: 1.3 N.m Static Torque Imperial: 22.13 lbf.in Metric: 2.5 N.m Speed at Max. Power: 6000 RPM No Load Speed: 12000 RPM Air Consumption at Max. Power: 38.1 CFM More Info: Fiam MO1200R 1.3NM/12000RPM Smooth Air Motor Output Shaft has an Innovative design insures reliable motor starting even at low air pressure, Does not overheat in difficult, heavy duty conditions, repetitive start/stops or repetitive reversing. How To Select The Right Air Motor