What tool is used to true, clean, and shape a grinding wheel?

The tool that is used to true, clean, and shape a grinding wheel is the wheel dresser. A wheel dresser serves multiple purposes; it helps to maintain the grinding wheel’s shape, which is essential for effective grinding operations. Over time, a grinding wheel can develop grooves or become loaded with debris from the materials being ground. Using a wheel dresser removes the layer of material that can affect the performance of the wheel, restoring its functionality by ensuring a clean and even surface.

Additionally, using a wheel dresser allows for the precise shaping of the wheel, which can enhance its cutting efficiency and prolong its lifespan. This makes it an indispensable tool in maintaining grinding equipment, ensuring high-quality results in machining tasks. Other options like a grinding wheel protector, tool rest, and hand grinder do not fulfill the specific functions of truing and cleaning a grinding wheel. A grinding wheel protector is designed to shield the wheel but does not engage in maintenance, while a tool rest supports the workpiece but does not interact directly with the grinding wheel. A hand grinder, on the other hand, is a different type of tool used for grinding material rather than maintaining the grinding wheel itself.