Today I watched a video about hollow-grinding plane irons and chisels. The guy in the video ground a very thick plane iron. Obviously, a Stanley iron about 3/32" thick is going to be tougher to put a hollow grind on.
I felt like the video was a bit on the snobby side.
The video guy used a 6" grinder. If I want to hollow-grind a thin plane iron, will 6" work, or am I better off getting a crappy little Chinese grinder with a smaller wheel?