End Mills are a bit used in milling, a machining process for removing excess material and providing a smooth finish at the same time. End Mill bits can be used in a variety of ways and on different materials depending on the End Mill type. R.S. Hughes offers End Mills for aluminum, wood, plastic, stainless steel, and other hard materials. Some of the most commonly found end mills are: ball end mills, micro end mills, square end mills, and roughing end mills. Sort R.S. Hughes end mill products to find the right solution for your job.