[SCzEngrgGroup]

Neat idea, why not just use an air impact wrench or electric impact wrench?
It seems a little over complicated. But it looks like it would really well with an automatic tool changer as a way to index the tools.

I had an impact wrench drawbar, and HATED it! It was rude, and crude, and very brute-force, and LOUD. You have no control over how far it loosens, and often have to adjust the air pressure to get it to loosen a tight drawbar. And, it's totally unsuited to tool change application, which is my next step.

Regards,
Ray L.