The Pearl Abrasive Slimcut Pro-V Type 1 cut-off wheel uses 46-grit aluminum oxide for cutting iron, steel, stainless steel, and sheet metal. Its 4½-inch diameter, 0.040-inch thickness, and 7/8-inch arbor bore suit 90° operation, with a maximum speed of 13,300 RPM. A stackable storage container protects the wheels when they are not in use.