I found an old rotary tool in my garage. Not sure where to attach the brown or blue wire. https://ibb.co/pKFwd0Y https://ibb.co/TMX7rKZ?
A "rotary tool" ? Like what, a bench grinder...a circular saw ? If you cant be a little more specific, maybe you shouldn't be fooling around with electric or power tools...seriously.
to the blue terminal on the bottom... where are its screws? i think it is a universal motor with a dimmer ( controlling speed ) is it a mixer?