Compact overall design of the Cornwell 1/4” Super Duty Air Ratchet, No. CAT4000SDR, puts out up to 42 ft/lbs of torque and offers a free speed of 270 RPM. This power tool’s specially designed full cage gearing increases durability and provides longer life. The rear exhaust directs air away from work and a built-in power regulator adjust motor speed. The tapered valve provides variable speed performance and an ergonomic rubber grip provides chemical resistance.