Plug & Pin Gauges

Double-end go/no-go gauges for checking hole and bore sizes. The GO end should enter the feature; the NO-GO end should not. The gap between the two is the tolerance band the gauge checks, and we list it on every product so you can see at a glance whether it fits your print.

Sizes here run from about .046in pin gauges up past 4in plug gauges. Smaller ones are pins in a handle; larger ones are solid double-end cylinders with a knurled centre.

Used shop tooling, sold as-is, uncalibrated and without certificates.