6 pc Telescoping Gauge Set.Comes with six gauges ranging from 5/16" to 6" and a durable carrying case.
Quickly measure everything from diameter, to grooves, to hard-to-reach recesses with the Proform Telescoping Gauge Set.
Simply insert the gauge (six sizes to choose from) into the area and turn the knob.
The spring-fed arms will snap to outer edges. Now, tighten the knob to lock the inside measurement.
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