Bullet_point: ['Center-cutting design allows the end mill to plunge into material like a drill bit while also performing conventional surface milling', 'Four flutes produce a better finish than fewer flutes', 'Powdered-metal high-speed steel is tougher and more shock resistant than conventional high-speed steel and cobalt steel', 'Suitable for machining on hardened steel up to Rockwell hardness C45', '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']

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