... air register, torque precision:3%, repeatablity: ±1% .6. Compact planet design, small size,high torque/weight ratio.7. Reaction arm of ... ,high efficiency, no impact torque can be continually output.10. Design of reverse pressure-bias motor provide the max.power and ... with brake & cutoff system to protect the operator.9. New ergonomics-design handle, which is freely connected with drive units and can ...