The Mercer 614050 is a 4 x 1/32-Inch 5/8-Inch Arbor Cut Off Wheel. The Mercer 614150 is a small diameter, high speed and fully reinforced Cut-Off wheel. The Metal Cut-off wheel is used for cutting all ferrous metals, thin iron pipe, bar stock, metal tubing etc. The cut-off wheel has an aluminum oxide grain and is made up of high strength phenolic resin bond. The Mercer blade also has double external reinforcing with metal centers on 1/16 & 1/8-inch. Features: * Used for cutting all ferrous metals, thin iron pipe, bar stock, metal tubing etc. * Aluminum oxide grain * Made up of high strength phenolic resin bond * Double external reinforcing with metal centers on 1/16 & 1/8-Inch * 19,000 rpm maximum What"s In the Box: * Mercer 614050 4 x 1/32-Inch 5/8-Inch Arbor Cut Off Wheel