General description Extra short length which allows it to be used where a traditional impact wrench could not. Technical specifications Head size: 1/2""D x 135mm long Torque: 500 lb-ft RPM: 11000 Impact sockets: 1/2""D x 75mm long: 17mm, 19mm, 21mm; 1/2""D x 28mm long: 14mm, 15mm, 16mm, 17mm, 19mm, 21mm, 22mm, 24mm Compatibility and accessories 1/2""D Adaptor Air line connector Oil pot