Chicago Pneumatic 828K 3/8" Air Ratchet Kit. Advanced head design provides dramatically longer life. Ergonomic square handle design for a positive, comfortable grip. Efficient 1/2 hp motor provides up to 50 ft lb of torque. Teasing throttle for precise speed control. Specifications: square drive - 3/8", standard bolt size - 3/8", average cfm - 4, air inlet - 3/8" NPTF, min hose size - 3/8", speed - 150 rpm, working torque range - 10 to 50 ft lb, ultimate torque by hand - 125 ft lb.
Chicago Pneumatic 8003672442