Extra-long-reach tools provide reach beyond that of standard-length end mills * Number of flutes varies; fewer flutes have more chip-carrying capacity and more flutes produce a finer finish * Titanium nitride (TiN) is a general-purpose coating that combines high-temperature resistance and increased hardness compared to uncoated end mills * High-speed steel is compatible with a variety of materials * Square nose end mills (also called square end) create sharp, unrounded cuts