Pipe Thread Detectives® are precise and easy to use thread identifiers for both male and female fittings. They are especially well-suited for distinguishing between similar National, British and ISO pipe threads.

CNC machined identifiers glide on wire lanyards containing permanent, easy to read size markings which are laser etched into each stand-off. Shatterproof, color-coded gauge dividers allow recognition of each strand at a glance. NPT strands are color coated with black dividers.
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Unit of Measure