Niagara Cutter – C330-0.250-D3-S.0-Z3 N86010 Carbide Square Nose End Mill, Inch, TiAlN Finish, Roughing and Finishing Cut, 30 Degree Helix, 3 Flutes, 2.5″ Overall Length, 0.250″ Cutting Diameter, 0.250″ Shank Diameter
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Three flutes provide better chip-carrying capacity than four flutes and a finer finish than two, reducing the need for a second finishing cut in some applications
Square nose end mills (also called square end) create sharp, unrounded cuts
Titanium aluminum nitride (TiAlN) coating lubricates the end mill for high-temperature stability and abrasion resistance at high cutting speeds, offering better heat resistance than TiN and TiCN coatings
Carbide can run at higher speeds than high-speed steel, resisting abrasion and high cutting temperatures
Center-cutting design allows the end mill to plunge into material like a drill bit while also performing conventional surface milling
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