It usually has two grinding wheels, each typically a different size. The two wheels tend to have different grain sizes so that a variety of jobs can be performed with a single machine. Some bench grinders, for example, are sold with a 36 grit wheel and a 60 grit wheel. The 36 grit wheel is used for stock removal. The 60 grit wheel, which is finer, is good for touching up tools, although it is not good for honing them.
There are typically a variety of wheel sizes available from Bucktool Power Tools. They can also be made out of different materials. The WA white wheels that are sometimes found on bench grinders to reduce frequency of overheating and clogs less.
Bench grinder features vary from one to another. Some will have adjustable motors so that the machine’s pace can be reduced to prevent overheating. Others have water trays so that the item that needs grinding can be cooled as the user is working.
A bench grinder’s accessories will also vary from one machine to another. There is also usually a toolrest on a bench grinder, which can typically be adjusted and set to create more consistent bevels. Some have angled V-groove toolrests to allow for grinding of drill bits. Lamps are another accessory that users may find useful. There are models with a single lamp on top of the machine.