3M™ Depressed Centre Grinding Wheel uses 3M precision-shaped grain technology, and means less pressure is required in use. Our wheels are designed to provide high cut rates and long life on all types of ferrous metals, stainless steels, alloy steels and cast iron.
Get up and Grind
The 3M™ Depressed Center Grinding Wheel is a heavy-duty wheel designed to be used at the beginning of a project; as a grinding wheel, it’s often the first step in a sequence. This wheel is used for rough grinding applications like beveling, slag removal, weld grinding and edge work on a variety of metals. You can rely on this wheel to help you to tackle your most aggressive grinding applications.
The Aluminum Oxide Advantage
The 3M™ Depressed Center Grinding Wheel uses aluminum oxide mineral, which is a popular choice among industrial professionals because of its fast cut-rate and long life. This mineral makes a tough, durable abrasive that self-fractures to expose fresh cutting edges, whereas traditional natural minerals dull more quickly. Due to its fast cut-rate, hardness and strength, it is widely used in sanding and finishing applications. Aluminum oxide is suitable for a wide variety of materials in metalworking, including ferrous alloys.
Type 27 Wheels and Tips for Optimal Use
The depressed center on Type 27 wheels enable flanges or metal attachment systems to recess within the wheel. When depressed center wheels attach to the tool, these attachment systems will not gouge the substrate or inhibit performance.
A grinding wheel must be run on a right angle grinder with a wheel guard that is designed specifically for the size and type of wheel used. The grinding wheel must have a listed maximum operating speed greater than or equal to the maximum listed speed of the grinder used. Type 27 grinding wheels should always be used with an approved grinding wheel guard. It’s important the disc not extend beyond the lip of the guard, because the guard helps prevent debris from flying and injuring operators.