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 Dimension [mm] Max.speed [R.P.M] Abrasive Grit 100x16 15200 A.ZA.C 40-320# 115x22 13300 A.ZA.C 40-320# 125x22 12200 A.ZA.C 40-320# 150x22 10200 A.ZA.C 40-320# 180x22 8500 A.ZA.C 40-320#