An internal threading tool with longitudinally separated cutting edges designed to form specific threads.
Classification: Tools for tapping or threading, parts thereof, of base metal
NSN 5920-01-171-2946
NSN 6135-01-177-3552
NSN 6620-01-067-8952
NSN 5925-00-332-0018
NSN 5996-01-633-7979
NSN 6645-01-027-7042
NSN 5999-01-113-6751
NSN 6240-00-435-9730
NSN 5965-00-866-3371
NSN 5960-01-170-4057
NSN 6240-01-448-6870
NSN 5998-01-329-7991