Select from Travers Tool's offering of thread plug gages for precision go/no-go measuring of hole threads. A go gage checks the minimum hole diameter. A no-go gage checks the maximum hole diameter. If the go gage enters the hole and the no-go gage is unable to enter, the design specifications of the hole have been met. Browse through the vast selection of plug thread gages and inside gages that Travers Tool has to offer today!