A bench grinder is, in essence, a double-ended motor with a grinding wheel mounted on each of the protruding shafts. As well, the motor has a base and guards surrounding the grinding wheels and eye shields to protect you from sparks and debris. Topend grinders have even more features. You can pay anywhere from well south of a hundred bucks to several thousand dollars for a grinder. Obviously, you get something for your money, so let’s take a look at features.
Wheel Size
Size: Grinders are sold in 6", 7", 8" and 10" sizing, which refers to the diameter of the grinding wheels the machine accepts. Unless you’re on a limited budget, avoid the 6" and 7" machines. They generally lack enough power to grind tools quickly. My preference is…