- A blend of R&D advanced chemistry and shaped zirconia alumina abrasive and premium aluminum oxide grain.
- Up to 20 percent increase in performance and life over our former zirconia alumina wheels.
- Excellent performance-to-price ratio for lower total grinding costs.
![Norton Depressed Center Wheel, 7 in Dia, 1/8 in Thick, 5/8 Arbor, Zirconia/Alum. Oxide, 10 PK, #66252843233 Norton Depressed Center Wheel, 7 in Dia, 1/8 in Thick, 5/8 Arbor, Zirconia/Alum. Oxide, 10 PK, #66252843233](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/224788/319536/547-66252843233__43375.1590788669.jpg?c=2)