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 6620-01-426-1148
NSN 5945-01-003-9426
NSN 5950-01-511-7661
NSN 5975-01-306-2350
NSN 5960-01-345-3464
NSN 5855-00-631-4565
NSN 6220-01-100-7428
NSN 5895-00-805-2394
NSN 4140-00-296-9695
NSN 6320-01-054-3046
NSN 6320-01-504-3948
NSN 5975-00-105-5107