... :Tungsten carbide end mills can process many kinds of metal, such as aluminum, hardened steel, stainless steel and ... mill is much different.For example, the aluminum is a sticky metal, when the end mill is processing it, the ... , it will cause the teeth blunt, and get a short service life.However, the aluminum can’t stick ... to TiAIN, so we need give a coating to the end mills.Many coating can be ...