Craftsman 3/8 in. Mini Ratchet Wrench This Craftsman 3/8-in. mini ratchet features a composite housing for a lightweight tool, which weigh Features a unique sealed ratchet head design which prevents the ratchet head from spreading under ex A laser-etched size indicator makes sure you grab the right too. Generates 20 ft/lb. of torque and 2 3.6 CFM average air consumption. Air inlet size: 1/4 in. Ergonomic throttle for your comfort. Minimum hose size: 3/8 in.