Volkel Hand Tap American UN-8 thread
Hand taps, Unified thread ANSI B 1.1
American UN Thread-series with constant 8 pitches per inch. Hand taps for UNx8 threads suitable for non abrasive material up to 900 N/mm², for thread cutting in through or blind holes and for unalloyed and low alloyed steels.
Hand taps for american UNx8 threads
Hand taps UNx8 acc. to ISO 529
Variations from UN 1.1/8 x8 to UN 4″ x8
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