The Hazet 3/8" Pneumatic Impact Ratchet, No. 9021SR-1, is equipped with a non-rebound striking mechanism for low-impact work. The reaction-free behavior of the high performance twin hammer mechanism ensures maximum occupational safety. The tool is suitable for manual re-tightening for torques up to 191 ft-lbs and, due to its short total length of 6.2", it can be used in constricted spaces. The head is equipped with a rubber protective cover to protect from scratches and dirt. The tool also offers a cold insulated handle that makes work with cold compressed air more comfortable. The impact ratchet works at speeds up to 500 rpm.