I started on a Sears 4x36 grinder (well first was a wood lathe with a sanding disc attachment but thats a different story) and I have to say that purchase was a complete waste of money. Personally I think you would be better off getting a $20 angle grinder and a couple of metal files and do it that way. After that I switched to a 6x48 sander and that would grind the blades flat no problem but doing the shoulder area was a pain...and belt tracking/switching was a real pain. With the money I spent on those two I could have bought a Grizzly....which is what I am currently using (after about 10yrs with the 6x48). The Grizzly is working fine for me but then when I get my KMG I will probably say "if I had saved the money from the 4x36, 6x48, and Grizzly it would have just about bought me the KMG"
