Campbell Hausfeld’s Commercial line of products feature the heavy duty performance and durability needed by construction workers, contractors, mechanics and others for demanding work. The CL1575 is a high RPM impacting screwdriver designed for speed and productivity. Max torque of 300 ft. -lbs. with a free speed of 10, 500 RPM. Working torque of 75-120 ft. -lbs. 2. 8 SCFM average air consumption. 1/4-inch air inlet and minimum hose size of 3/8-inch.