Calibration O3 Tightening value 3 N · m - 25 N · m maximum torque 25 N · m Scale division 1 division = 0.5 N · m Drive square 1/4 inch Scale division 1 graduation = 0.5 cN · m Weight 0.4 kg full length 245 mm Suit direction right and left suit Measuring accuracy torque ± 3% Torque range 3 N · m - 25 N · m