A roughing end mill is a type of cutting tool used in metalworking to remove large amounts of material quickly. It is designed with multiple cutting edges and a coarse pitch to allow for rapid material removal. The roughing end mill is typically used at high speeds and feeds to remove large amounts of material in a short amount of time. It is commonly used in roughing operations on steel, aluminum, and other metals. The roughing end mill is also used for slotting, pocketing, and profiling operations. It is available in a variety of sizes and shapes to suit different applications.