... torque by adjusting the pressure on air register;4.Accuracy:±5%,repeatability: ± 1%.5. Optional digital air register, torque precision:3%, repeatablity: ± ... 1 pc torque wrench,1pc reaction arm, 1 pc air register,1 set operating instructions,1 piece of testreport , ABS ... much lower.4. Torque precision:±5%, ± .5. Optional digital air register, torque precision:3%, ± .6. Shift high/low speed mechanically ...