Guitar fingerboard radius gauges

I needed to do some setup work on my guitars and needed a few radius gauges, so I modeled these up. There are 3 gauges, with the same 4 radii (2 slotted and 1 solid plus a storage case). The solid is mainly to check the radius when the guitar is not strung up. The 2 slotted ones are for checking with the strings on. The narrow version is for checking near the nut, and the wide version is for using closer to the body.