I know the green is a chromium oxide which is very hard. In a previous life I had a paint mill that used a stainless steel scraper blade about 1/32″ thick. In 6 hours of running we would abrade about 1/4″ off of the blade. Good thing they were disposable.
The blue could be a cobalt compound or iron blue. If it is listed as finer than green, that would mean the particle size of the pigment would be smaller. Same for white.
I don’t know why you would need anything finer than green for tools.
If you have blue, give it a try but you may spend more time polishing just like you would if you used 600 grit paper versus 100 grit to remove material.