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Make sure that the wheel has access to a reasonably wide area of your workpiece. You may have to remove the guard that normally provides protection when grinding, but be aware that the guards on some models are part of the main casing and are usually unremovable. Lower bench grinding speeds help keep heat build-up under control - If available, use a lower bench grinding speed to keep the heat build-up, on both the object being ground and the grinding wheel itself, under better control.
Makita Bench Grinder 150mm 250W - Grinders - Power Tools Makita Bench Grinder 150mm 250W - Grinders - Power Tools
Fast speeds aren’t usually an issue for heavy-duty jobs for which you will probably want your grinder going at full bore the entire time.Like most heavy-duty grinders, the Dewalt DW758 8” only runs at a single speed. Even so, it does a great job of shaping tools, deburring, and removing rust spots. Buffing wheels come in 6” and 8” diameters, so you should have no trouble finding a wheel that will fit your grinder.
Makita Bench Grinders | Total Tools Makita Bench Grinders | Total Tools
Grits also come in different colors, which indicate the type of material used. Like grit sizes, different colors are better suited for different purposes. Make sure that the grinder is set securely on your workbench to reduce vibrations. The tool rest should also be set securely, with about 1/8” of space between the edge of the tool rest and the grinding wheel. Pressing too hard could remove too much material and increase the possibility of overheating. Single-speed bench grinder comparisonEssentially, once you have decided on the grinding wheel diameter to go for, usually either 6" (150mm) or 8" (200mm), it simply then becomes a matter of buying the highest-powered machine that you can afford, while keeping an eye out for the features that each offers. Those features include the ability to change out the wheels for different types of grinding wheels, wire wheels, or polishing mops, endowing the humble bench grinder with a whole range of capabilities. Work light. An onboard light will help you see what you are doing and spare you the hassle of setting up a lamp near your work area. Most 8” models do tend to run a bit slower than 6” grinders, but you won’t have to change the wheels as often, and they generally require much less maintenance. In general, you will want to apply light and even pressure when pressing your tool or workpiece against the grinding wheel.