ATC module for ER20 spindles

[JohnHaine]

The whole point of an Impact Driver Mechanism is that it isn't reliant on motor torque, it releases the drive in response to pre-settable torque demand, allowing the spindle to accelerate, it then uses spindle system angular momentum against a braking mass to apply the required torque, repeatedly.

That's true when tightening but loosening is a different matter as the spindle will be stationary.

[magicniner]

That's true when tightening but loosening is a different matter as the spindle will be stationary.

Impact driver mechanisms are bi-directional