Staggered tooth thread mills will cut internal and external threads. Every other tooth removed in a staggered pattern for reduced side cutting pressure.
Staggered Tooth - UN
Stub Acme Internal SPTM Thread Mills
Metric Straight Flute Thread Mills - Solid Carbide - Full Profile
UN / Metric - Single Profile Thread Mills - Starting at .120 to .488 inch diameter
Acme Internal SPTM Thread Mills
Metric 30 degree Helical Flute Thread Mills - Solid Carbide - Full Profile