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UN Unified National Ring Gauges
Our range of unified national thread ring gauges from German manufacturer JBO gauge outside threads to determine if the thread is within the upper/lower limits of component tolerance. Available in a wide range of sizes, tolerances and go/no-go forms.
Don't have an account?
Creating an account has many benefits: check out faster, keep more than one address, track orders and more.
Or
Checkout as a Guest
Place your order without creating an account for extra convenience.