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51071 - 28 Blade 4 - UNF and UNC Screwpitch Gauge Set, 62tpi
Folding leaves, individually stamped with accurately formed thread profiles. American National Thread UNC - UNF, in the range 4 - 62TPI.
- American National Thread UNC-UNF
- Range 4-62TPI
Inquiry - 51071 - 28 Blade 4 - UNF and UNC Screwpitch Gauge Set, 62tpi
