Grinding wheels come in various shapes, sizes, and designs, each suitable for specific grinding applications. Some common types of grinding wheels include:

Straight Grinding Wheel: This is the most common type of grinding wheel with a flat surface and a cylindrical shape. It is used for surface grinding, cylindrical grinding, and tool sharpening.

Depressed Center Grinding Wheel: Also known as a "Type 27" wheel, it has a depressed center or saucer-shaped design. It is primarily used for grinding and blending on flat surfaces and is commonly used in angle grinders.

Flaring Cup Grinding Wheel: This type of wheel has a cup-shaped design with a flaring sides. It is used for tool and cutter grinding, sharpening of cutting tools, and grinding of complex shapes.

Dish Grinding Wheel: A dish-shaped grinding wheel is used for grinding surfaces and edges, as well as for precision grinding and tool sharpening.

Diamond Grinding Wheel: These wheels have diamond abrasive particles bonded to the surface. They are used for grinding hard materials such as carbide, ceramics, and glass.