Industrial 1.391-1.396-1.3906-PIPE Go No Go Gauge is an industrial‑grade inspection tool used to verify pipe diameters against Go and No-Go limits. It targets three nominal sizes—1.391 in, 1.396 in, and 1.3906 in—to enable quick pass/fail checks during fabrication, machining, or assembly. This Go/No-Go gauge helps ensure consistent bore size and proper fit for pipe fittings or connectors by confirming that the diameter stays within the specified tolerances.
