Splined Plug Gauges are used to check circular space width on an internal suplined component.
Splined Ring Gauges are used to check tooth thickness on an external splined component. Ring Gauges can also be manufactured to fit new or existing taper master plug gauges.
Splined Taper Master Plug Gauges (TMP) are taper tooth master plugs with fit and wear lines. Taper Master Plug Gauges are used to monitor the wear of Ring Gauges during component manufacture.