... torque by adjusting the pressure on air register;4.Accuracy:±5%,repeatability: ± 1%.5. Optional digital air register, torque precision:3%, repeatablity ... degree.8. 4-way type of power control system, large-span torque.9. 7-vane type high performance air motor,high efficiency ... noise motor , the noise is much lower.4. Torque precision:±5%, ± .5. Optional digital air register, torque precision:3%, ± .6. ...