Suitable for machining on steel, chromium-nickel steel, and cast iron
Extra-long-length end mills have longer cutting edges and can make deeper cuts than long-length end mills
Four flutes produce a better finish than fewer flutes
Titanium aluminum nitride (TiAlN) coating lubricates the end mill for high-temperature stability and abrasion resistance at high cutting speeds, offering better heat resistance than uncoated finish, TiN coating, and TiCN coating
Carbide can run at higher speeds than high-speed or cobalt steel, resisting wear and high cutting temperatures