Originally Posted by SBranson23
Anyway you could just tell us the diameter of the gauge and we could use a drill bit of corresponding size like you mentioned earlier? Save you the hassle of shipping out a zillion little pieces of brass tubing.
The tubing is 0.147" diameter. There are no close fractional drill bit diameters, but you can use a #26 drill if you can get to a machinist tool supply store.