Well I bought the Clarke electric rattle gun and got my flywheel done. It took some doing and at first I thought it wasn't going to get the bolt undone but it did.

The gun is a bit bigger than it looks in the pictures, quite a beast actually and weighs a lot. Certainly not a lightweight tool. The only complaint I have about is the the Black plastic swirled grip at the front does not stay on. This is purely cosmetic and has no effect on use. It would have been also nice if a separate handle was supplied and could be attached to it. Maybe I will find one from a drill one day.
A big thumbs up for value, build and use.
(:-})