Most common end style. End cutting teeth to drill and plunge cut to start slots.
Used to create compound curved shapes such as forming molds.
Ideal for mold applications. Rounded flute tops reduce chipping.
END MILL TYPES
Most commonly used for a variety of milling applications.
Provides maximum rigidity and reduces deflection.
Longest overall length for milling deep and hard-to-reach areas.
Neck is relieved and extended to provide additional clearance for cutting.
Used for deep rib grooving.
Provides increased metal removal rates while leaving a fine finish.
Roughing, Coarse Pitch
Designed for slotting and profiling in most materials. Provides increased metal removal rates.
Roughing, Fine Pitch
Designed to evenly distribute cutting forces and reduce radial cutting pressure. Allows increased metal removal rates and better finish.
Designed for wood, plastics, nonferrous materials, and some composites, with higher feed rates, deeper cuts, and better finishes. For use with CNC routers, machining centers, and milling machines.
Ideal for ramping, plunging, and machining bottom surfaces.
Ideal for side cutting. End cutting edges do not go to the center of the end mill.
NUMBER OF FLUTES
Tools have more chip capacity and are designed for deep slotting and pocketing.
Tools have more chip capacity and are designed for deep slotting and pocketing. Larger cross-section provides more rigidity.
4-Flute and Multiflute
Tools last longer and are designed for medium slotting and pocketing, producing a finer finish.
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MATERIALS AND SURFACE TREATMENTS
High Speed Steel (HSS)
Used for a variety of applications on ferrous and nonferrous materials. Adds abrasion and heat resistance for longer end mill life.
Provides higher abrasion and heat resistance for use on harder materials such as stainless steel and armor.
Designed for high-volume cutting of difficult-to-machine materials such as cast iron, nonferrous metals, and abrasive materials.
Surface is untreated, but flutes are polished to increase chip removal.
Titanium nitride coating lengthens tool life and allows higher speeds with added lubricity. For ferrous and nometallic materials.
Titanium carbonitride coating has a higher hardness value than TiN, providing excellent heat resistance for more abrasive materials. Lower oxidation temperature limits use to workpiece materials where moderate temperatures are generated at the cutting edge.
Titanium aluminum nitride coating is most effective where accelerated feeds and speeds are required. For use on ferrous materials, high-temperature alloys, titanium, and stainless steels.
Designed for increased resistance to heat and oxidation wear when compared to standard TiAlN coating.
EXO® – For machining steels and alloys up to 55 HRC.
WXL® – For machining steels and alloys up to 50 HRC and nonferrous materials.
WXS® – Multilayer coating for machining materials up to 65 HRC.
Aluminum titanium nitride coating is designed for very high feeds/speeds and high-temperature applications, such as milling titanium, nickel-based alloys, cast iron, and stainless steel. Not recommended for aluminum.
CVD Diamond Coated
Carbide substrate with diamond coating. Ideal for die, mold, and aerospace applications. For nonferrous materials such as aluminum, copper, and graphite.