1.Downstroke and lever model;

2.Large range of torsion adjustment;

3.Single point escape with high torsion precision;

4.skidproof handle made of special soft materials

The new pattern impeller made of particular material which has single air inlet and double air outlets, has a super large output range of torque force and the motor has a longer service life.
The patent clutch structure of alternative track, the monobuoy torque force is more stable. Super large torque force range could meet the different requirements of locking output.
Five axles synchronous processing, the alloy steel gears are transmitted conce -ntric, with small noise, small vibration and high precision.
Ergonomic shell design, soft material rubber handle, unique appearance and comfortable handle feeling, not easy to get tired in long time operation.
Positive and negative shift switch, rapidly replace the screw drive head and adj -ust torque force, is easier for operation.