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![3/4.20 UNEF Thread Caliper Gauge Go / NoGo](https://images.findtheneedle.co.uk/findtheneedle/products/17097823.jpg)
Specification
Knife edge thread calipers
go & nogo conform to class 2A.
Part Number ES-4182
For more information on 3/4.20 UNEF Thread Caliper Gauge Go / NoGo talk to JLS Supplies Ltd
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