Calibration O3 Tightening value 1 N · m - 12 N · m maximum torque 12 N · m Scale division 1 graduation = 0.2 N · m Drive square 1/4 inch Scale division 1 graduation = 0.2 cN · m Weight 0.33 kg full length 197 mm Suit direction right and left suit Measuring accuracy torque ± 3% Torque range 1 N · m - 12 N · m