1.3/8".12 UNF Thread Caliper Gauge Go / NoGo 1.3/8"x12
Specification Knife edge thread calipers go & nogo conform to 2A. Part Number ES-4172Visit the JLS Supplies Ltd website for more information on 1.3/8".12 UNF Thread Caliper Gauge Go / NoGo 1.3/8"x12