20" x 3/16" x 1" general purpose cutting wheel Applications: High performance cutting of carbon steel and other ferrous metals General purpose metal cutting blades for any thickness material Fabrication cutting blades for 1/4" to 1/8" thick materials Stud cutting blades for 1/8" or thinner materials Features: High performance aluminum oxide grain for long life and fast cutting High grain concentration for aggressive cutting action and smoother running wheels Proprietary material mix ensures durable long life wheels 2 full sheets of fiberglass for durability and safety