... ,AC; 2. LCD display, torque preset by button, stop automatically when reach the torque. 3. Digital torque control system, output precision: ±3 ... light weight, more portable; 6. Electronic anti-over-torque system to protect the gears and mechanical system effectively 7 ... . Compact, durable gear system; high ration of torque/weight, easy maintenance; 8. Industry-grade design, strong ...