When you need to cut through metal, this Forney 4-inch cut-off wheel gets the job done. It's a Type 1 flat wheel with a 5/8-inch arbor, made from aluminum oxide (A46T-BF specification) specifically for cutting ferrous metals like steel. The wheel is 0.040 inches thick and rated for a max speed of 19,100 RPM, so it works great on angle grinders and die grinders. It's designed for clean, fast cuts in metal fabrication, bodywork, repairs, and general DIY projects. Forney is a trusted name in metalworking, and this wheel is a popular choice for its effectiveness and durability. Remember to wear safety gear and follow tool guidelines when using it. A reliable, affordable cutting wheel for your workshop.