The Metabo Original Slicer is a high-performance aluminum oxide wheel designed for cutting steel and other ferrous metals. With a 4-inch diameter, 0.040-inch thickness, and 5/8-inch bore, it offers an extremely fast rate of cut, good wheel life, and flexibility for flush cutting applications. With a maximum operating speed of 22,000 RPM, this cut-off wheel ensures clean and precise cuts while maintaining durability.