I'm looking for a device like vernier calipers (ie 0.1mm resolution or thereabouts is fine), but in more of a C-clamp configuration which allows me to measure the thickness of some object's face where there is a thicker frame, lip or ridge around the outside which makes it impossible to use verniers.
A few examples:
- Thickness of glass plate in a framed mirror
- Thickness of the side walls of a container with a narrowed top
- Thickness of a lipped lid, say for a barrel
I know there must be a range of measurement devices to do these sorts of things, but my Google-fu is failing me today. Micrometers are the closest I can get, but (1) I don't need that sort of accuracy, and (2) they still don't work if the lip/frame is too thick.
What should I be looking for?