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Primary Cutter’s Supermill catalog features high-performance carbide end mills with an extensive offering of radius sizes and diameters. Products include Supermill All Purpose four-flute and Supermill five-flute end mills. Both are suited for aerospace applications.  In addition, the catalog features three new product offerings: Supermill seven-flute, Supermill XP four-flute metric and Supermill five-flute metric end mills.