Niagara Cutter N57363 Carbide Square Nose End Mill, Metric, AlTiN Finish, Roughing and Finishing Cut, 4 Flutes, 63mm Overall Length, 9mm Cutting Diameter, 10.000mm Shank Diameter The combination of Stabilizer flute geometry, carbide substrate, and AlTiN coating make this end mill suitable for use on hard materials such as carbon and tool steels, steel alloys, and cast iron Stabilizer flute design uses unequal spacing and variable helix angles to minimize tool vibration and remove up to three times more chips per minute than conventional carbide end mills Aluminum titanium nitride (AlTiN) coating lubricates the end mill for high-temperature stability and abrasion resistance, offering better heat resistance than TiN, TiAlN, and TiCN coatings Four flutes produce a better finish than fewer flutes Square nose end mills (also called square end) create sharp, unrounded cuts