Below is a photo of my bench grinder - it's a simple six inch diameter two disc set made by Delta - located between my Wilton vise and the spray booth. The bench grinder was actually a gift from a former relative, and it has served me very well since 2008. But I'm a bit lazy and prefer not to have to change the discs if I can help it. Or to put that another way, I really wanted a second bench grinder, so that I could have simultaneous access to a polishing wheel, a wire brush and a grinding wheel or two without faffing about.
The six inch diameter wheels suit my needs pretty well, so I decided to just get another grinder the same size. Delta have made some modifications to the grinder in the last fifteen years, which we'll get to in a bit. Firstly though, I need to make space for it. There would have been plenty of space next to the existing grinder in the area where I built the paint booth. So, I just wound back the clock to 2020 and I was done: