mkemmet
Member
I am looking at purchasing the four-piece sharpening system and variable-speed bench grinder from PSI. I see the system (grinder and jig) is getting a 4.5 star rating on a 5 point grading scale. As a retired engineer I'd like to learn more about grinding wheel speeds before I purchase any system. Is there such a thing as a sharpening speed grinding wheel chart? Using my current system, a fixed-speed grinder, I have blued (overheated) the tips of my tools a few times too many times. I am very interested in specifics on grinding speeds. Thanks!