Gauging guides.
Short, practical explainers on thread and plain gauging, written for anyone specifying or buying a gauge.
How a GO / NOT-GO Thread Gauge Works
A plain-language explanation of GO and NOT-GO thread gauge members and how they give a pass or fail decision.
Read the guideMetric vs Unified vs Pipe and Taper Threads
What metric, unified, parallel pipe and taper pipe thread standards each cover, and why the gauge has to match.
Read the guideHow to Choose the Right Thread Gauge
Three decisions when specifying a thread gauge: the standard, the class or tolerance, and plug vs ring.
Read the guidePlain Plug vs Snap Gauges: When to Use Which
The difference between plain plug/ring gauges and snap gauges, and which one fits internal vs external checks.
Read the guideWhat Traceable Calibration Means
What a traceable, NABL-accredited calibration certificate actually means and why it matters.
Read the guideCan't find what you need?
Ask us directly, or share your thread and standard on the quote page.