Zirconia alumina is a high-performance abrasive delivering optimum stock removal performance on high-powered angle grinders at higher contact pressures - Abrasive: Zirconia alumina Z Grit sizes: 40, 60, 80, 120 - High-performance tool with aggressive stock removal performance and a very long tool life. For demanding grinding work at maximum cost efficiency. - Steel, stainless steel (INOX) - Work on weld seams, chamfering, surface grinding on steel