Cutoff Wheels Abrasive Material Aluminum Oxide Grit 90 Connector Size 1 1/4 in Connector Type Unthreaded Hole Overall Diameter 6 in Overall Thickness 0.02 in Compatible Tool Type Chop Saw Primary Material Applicationn Aluminum Brass Bronze Cast Iron Copper Nickel Alloy Stainless Steel Steel Titanium Tool Steel Series R30 57A Wheel Type Type 1 Specification 57A90-R0R30 Reinforced Status Non-Reinforced