When you need to smooth out imperfections in a piece of metal during a repair, the tool that you are almost certain to reach for is a grinder.  By using a high speed grinding wheel with a highly abrasive coating, you will be able to make easy work of even the toughest burrs and outcrops of metal, and get a smooth surface that is ready to work with.  There are literally hundreds of different uses for grinding wheels, and getting the right one for each job is absolutely essential: if the grinding wheel is too coarse, you risk not getting a good finish, while if it is not abrasive enough; the result will be a much harder job.

Because grinding wheels are so commonly used in modern workshops, the safety aspect of them is often overlooked, and this is a mistake.  Despite the fact that most wheels are now made to incredibly high tolerances, damage can still impair their performance, and the wheels can potentially shatter if they have not been looked after, so it is important to perform a few checks to sound the wheel and true it whenever it is used.

Grinding wheels are typically rated to be used at a specific speed – the Makhita 741402-9AP is designed to rotate at up to 13,700 RPM, and has a depressed center that ensues that only the actual grinding wheel surface is actually able to touch the area where it is being used.

There are many different sizes of grinding wheel available for different purposes.  From small diameter wheels intended to be used for fine work on smaller components or even for sharpening other tools through to much larger wheels up to 9” in diameter or even more that can be used on large surfaces where an even finish is absolutely essential.

Different materials are used for various purposes, but on the whole, except for very specialized units such as diamond coated wheels, the majority of grinding wheels are made of a compressed grit that is bonded and formed into shape in order to provide a long lasting and effective surface that will provide consistent results over time.

There are a wide variety of different materials that are used in the manufacture of grinding wheels, and these are