- Wholesale 3/8" AIR RATCHET - Die-cast aluminum Body. - 3-ball bearing Motor. - Compact Size for Use in Tight Areas. - Reversible, Finger-Controlled Throttle. - Speeds up Removal and Installation of Parts. - Air Inlet :1/4" NPT. - Square Drive: 3/8". - Max. Torque :50FT/LBS. - Average Air Consumption: 4CFM. - No-load Speed :160RPM. - Recommended Air Pressure 90PSI. - Air Hose Size: 3/8" ID