The JBO Thread Ring Gauge (Go/NoGo) for NPTF threads is a precision inspection tool designed to verify that pipe fittings will thread together correctly and seal reliably. Sized for Right Hand, 1/2 x 14 threads, this gauge is ideal for technicians in automotive, hydraulic, and fluid-power systems who demand fast, confident checks during assembly and maintenance.

With a Go/No-Go design, you get a clear pass/fail result for each thread, streamlining quality checks and reducing guesswork during installation or overhaul.

• Go/No-Go quick verification: The Go/No-Go design delivers fast, visual pass/fail results, so you can confirm whether a thread will mate and seal as intended without trial fits or guesswork.
• Precise, repeatable measurements: Meticulous dimensions ensure consistent readings across inspections, helping you meet NPTF specifications and reduce rework.
• Durable, field-ready construction: Built to withstand repeated use in demanding environments—from shop benches to field service—in automotive, hydraulic, and fluid-power applications.

This gauge helps you speed up inspections, improve fit reliability, and maintain the integrity of critical systems by providing clear results and dependable performance across everyday tasks and challenging projects.