Abrasive Cut-Off Wheel Abrasive Material Zirconia Alumina Grit 24 Connector Size 3/8 in Connector Type Unthreaded Hole Overall Diameter 4 in Overall Thickness 0.035 in Compatible Tool Type Die Grinder Primary Material Applicationn Stainless Steel Steel Series BlueFire Wheel Type Type 1 Maximum Operating Speed 19 100 RPM Reinforced Status Reinforced