This picture shows the tyne hung in the end of the barrel: Notice that the left end of the gauge hangs from my thumb so that I don't torque it and mis adjust the zero point.

This picture shows that the gauge reads zero after it is adjusted. This is before you start taking measurements:



Then you slide the forks down the barrel and read the thickness:


Clear as mud I am sure. Good luck.

Mike


I am glad to be here.