1, Adopt unique rotatable design, for different reaction position, can rotate the reaction rod at will; 2, Extremely compact size, the motor right angle arrangement, can reduce the length of the host, easy to tighten small space; 3, Tool rear intuitive position with work, qualified, unqualified status lamp indication and digital torque value display, intuitive and easy to error prevention; 4, With multi-stage model selection knob, has preset dierent models of tightening parameters, can be directly selected, convenient and fast; 5, Hand start button can control the tightening speed, nger hook to half for slow, nger hook to the end for fast, the function is easy to wear pin tightening assembly of the nut on the hole; 6, Torque range: 10-3000N. m between dierent grades (a total of 11 kinds) to choose from; 7, Torque accuracy: ±3%; 8, Low noise: 62Db.