Niagara Cutter N85267 Carbide Square Nose End Mill, Inch, Uncoated (Bright) Finish, Roughing and Finishing Cut, 30 Degree Helix, 2 Flutes, 1.5" Overall Length, 0.125" Cutting Diameter, 0.125" Shank Diameter Two flutes offer better chip-carrying capacity than end mills with more flutes, enhancing the tools ability to remove material Square nose end mills (also called square end) create sharp, unrounded cuts Carbide can run at higher speeds than high-speed steel, resisting abrasion and high cutting temperatures Uncoated (bright) tools have no additional surface treatment or coating for use on a broad range of materials Center-cutting design allows the end mill to plunge into material like a drill bit while also performing conventional surface milling