Ingersoll Rand 109XPA 3/8 Super-Duty Air Ratchet Wrench - This is the fastest ratchet in its class, with an optimized gear ratio and air flow for Extra Performance, coupled with exceptional durability. 70 ft.-lbs. maximum torque at 300 rpm free speed Exclusive IR TwinPawl Plus head design for exceptional durability 360° adjustable exhaust directs air away from the operator and the work