Strong durable alumina zirconia mineral providing a sharper, longer lasting alternative to aluminum oxide on a strong X weight cotton backing. For applications requiring heavy stock removal to medium finishing. Angled for better surface coverage. NOTE:WE CAN PRODUCE ALL TYPE AS CUSTOMER REQUIRE 100x16 15200rpm 115x22 13300rpm 125x22 12200rpm 150x22 10200rpm 180x22 8500rpm