Acme thread mills come in both acme and stub acme configurations. Different tools are available to cut the internal and external thread.
SPTM - Acme / Stub Acme
Stub Acme Internal SPTM Thread Mills
Acme Internal SPTM Thread Mills
Metric 30 degree Helical Flute Thread Mills - Solid Carbide - Full Profile
Metric 15 degree Helical Flute Thread Mills - Solid Carbide - Full Profile
Metric Straight Flute Thread Mills - Solid Carbide - Full Profile