37-degree helix provides efficient chip evacuation required to machine aluminum and other nonferrous materials Three flutes provide a finer finish than two flutes, reducing the need for a second finishing cut in some applications Rounded area behind the cutting edge (cylindrical land) stabilizes the tool in the cut and leaves a smooth finish on the workpiece Low surface-roughness on the cutting…

Number of flutes varies; fewer flutes have more chip-carrying capacity and more flutes produce a finer finish High-speed steel is compatible with a variety of materials Uncoated (bright) tools have no additional surface treatment or coating for use on a broad range of materials Square nose end mills (also called square end) create sharp, unrounded cuts Center-cutting design allows the end mill to…

Roughing end mills have chip-breaking cutting edges that remove material in less time than conventional end mills Fine-pitch tooth design and tool geometry are suitable for machining low-hardness materials under Rockwell hardness C45, including alloy steel, tool steel, carbon steel, prehardened steel, stainless steel, and nickel-based alloys 50-degree helix offers increased cutting action compared…

Suitable for finishing on most materials Six flutes produce a better finish than fewer flutes 40-degree helix provides increased cutting action compared to end mills with lower helix angles Carbide can run at higher speeds than high-speed or cobalt steel, resisting wear and high cutting temperatures Uncoated (bright) tools have no additional surface treatment or coating for use on a broad range of…

Roughing end mills have chip-breaking cutting edges that remove material in less time than conventional end mills Coarse-pitch tooth design and tool geometry are suitable for high-production metal removal on cutting- steel grades and many nonferrous materials Long-length end mills have longer cutting edges than standard- and medium-length end mills for increased cutting length Number of flutes…

Double-end square end mills create sharp, unrounded cuts and have cutting edges on both ends for longer tool life Suitable for general-purpose machining on hardened and high-alloy steel, chromium-nickel steel, steel casting, malleable cast iron, brass, copper, aluminum with a high percentage of silicon, and abrasive plastic Stub length increases the strength of the tool, making it less likely to…

Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications Weldon shanks feature a round shank with one of more flats machined into the side for easy…