Weiler Tiger AO 5 inch type 11 cup grinding wheels deliver the right combination of performance and value. Aluminum oxide grains in combination with a strong bond deliver long product life and a consistent cut-rate when grinding metal. The type 11 conic or flared shape features a flat face make them ideal for heavy metal removal, grinding, transitioning, rough beveling, and removing cracks and flaws. These cup rocks have a 1 inch rim and 3/4 inch back. The 5/8-11 inch arbor is designed for use on right angle die grinders, high-frequency grinders, and right angle grinders. Whether you are in a fab shop or a foundry, you can count on Tiger AO cup wheels to get the job done fast and done right.