I have a GW Models wheel press and a GW Models wheel puller.
I think my gear puller, for getting worms off motor shafts, may also be GW Models but I've had it so long I can't remember!
The wheel press sets plastic centred wheels perfectly at 90 degrees.? If you are modelling a 3 cylinder NG loco (can't think of one offhand) you are stuck but, who can see both sides of a model at once!!
When using the wheel puller with plastic centred wheesl remember the advice given years ago in MRJ (and possibly also in the Review) to make a disc to go behind the wheel so the plastic centre isn't distorted as it is pulled.? Its a few moment's work with an Olfa compass cutter but saves the cost of new wheels.....how do I know.......... :-(
Adrian