End Mills

Atlas Cutting Tools stocks one of the largest selections of USA-manufactured end mills available online, with over 25,000 items ready to ship the same day. Choose from Carbide, Cobalt, and HSS (High Speed Steel) end mills in square end, ball end, corner radius, and rougher/finisher styles, available in stub, regular, and long lengths. Our Carbide High Performance line includes variable index and variable pitch designs in 3, 4, 5, and 6 flute configurations, finished with ALTiN or ALCRO-MAX coatings for extended tool life in demanding applications.

Whether you're roughing aluminum, finishing hardened steel, or machining exotic alloys, we carry the flute count, coating, and geometry to match your job. Every end mill is manufactured right here in the USA using premium sub-micro-grain carbide and the latest CNC production methods, backed by our 97% same-day fill rate and competitive wholesale pricing. Browse by material below, or use our Tool Finder to narrow results by size and specification.

What is the best End Mill for my application?

 What is the best coating for my End Mill?

TiN (Titanium Nitride) End Mill Coating A special multilayer coating for edge retention and corrosion resistance when used on a wide range of materials including iron based, hardened steels, and stainless steels. Typically TiN is used in applications with lower cutting speeds than TiCN and ALTiN but often improves the tool's lifetime by a factor of three or more.

TiCN (Titanium Carbonitride) End Mill Coating A general purpose coating that offers improved wear resistance to abrasive, adhesive, or difficult to machine materials such as cast iron, aluminum alloys, steels, copper and more. This is a common used substitute when the advantages of ALTiN cannot be used, as in applications that cannot generate the speeds and feeds required for higher cutting temperatures. TiCN is harder and more impact resistant than TiN and can improve tool life by as much as 800%.

ALTiN (Aluminum Titanium Nitride) End Mill Coating This is a high performance coating for milling, tapping and drilling in stainless steels, carbon steels, alloy steels, and cast iron. This coating is extremely heat resistant and can be used with or without coolant. It is exceptional in difficult to machine materials where adhesive wear is particularly high and can be run at much higher speeds and feeds than all other coatings.