HeliCoil Thread Gauge

HeliCoil Thread Gauge – The accuracy of the finished thread, when the insert is installed, is dependant on the accuracy of the tapped hole. Prior to installation of inserts, it is highly recommended that the tapped hole is gauged with a HeliCoil Gauge. This will ensure that the hole is tapped according to the proper specs and dimensions.

If the tapped hole gauges correctly, it is not necessary to gauge the installed thread insert as the installed insert will be within the thread tolerance.

After the HeliCoil insert has been installed, the Go Gauge may on occasion, not enter freely. However, the insert will always seat itself when the bolt or screw is installed and tightened.