The 3M 28762 Cubitron II Ceramic Aluminum Oxide Cut & Grind Wheel in 36 grit is a high-quality abrasive designed for cutting and grinding tasks. With a very coarse grade and a maximum RPM of 13,300, this wheel is perfect for tackling tough projects efficiently. The black color and 4 1/2" diameter make it easy to identify and use in a variety of automotive and industrial applications. Packaged in quantities of 10, this durable and long-lasting wheel is a reliable choice for professionals and DIY enthusiasts alike.