Combination of composite materials, alloyed metals and twin hammer design result in a lightweight, durable and powerful air impact wrench. Soft grip handle with downward facing exhaust, make this wrench comfortable on the hands and ears and limits the circulation of brake dust on wheel applications. Fingertip control of power and direction via lever on rear of wrench. Fastening Torque: 442lb.ft(600Nm). Breakaway Torque: 486lb.ft(660Nm). Combination of composite materials, alloyed metals and twin hammer design result in a lightweight, durable and powerful air impact wrench. Soft grip handle with downward facing exhaust make this wrench comfortable on the hands and ears and limits the circulation of brake dust on wheel applications. Fingertip control .