Just wondering with this work? I dont want any controll over the speed its just goin to be constant.

Depends...

Do you ever want to stop?
How fast do you wish to go?

The variables are nonstop.

Just will it work i plug it in it spins i unplug it stops... I put a sander bit on the end of it..

Andrew

Yes.

It sure will work. Next time you have a cordless electric drill that dies you should keep the trigger/speed control assembly and add some deans to that, then you can plug it in between the battery and motor and control both speed and direction.