Hand taps, Unified extra fine thread ANSI B 1.1

Hand taps for UNEF threads in conical (non-serial) form suitable for non abrasive materials up to 900 N/mm² and for threading in through or blind holes.
Hand taps for american UENF threads

Hand taps (UNEF) acc. to ISO 529
Variations from UNEF 1/4 to UNEF 1″