Workpro Air Ratchet Wrench 3/8''pneumatic Ratchet Wrench50ftlb Max

(M) of torque at free speed of 160RPM. 【F/R Knob】 Adjusting the F/R knob on the back of the square drive can change the direction of the air ratchet wrench. Forward to tighten the bolts and reverse to unscrew the bolts.