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?
Best Answer
There are special forms of Vernier caliper such as these known as neck calipers.
Obviously, the machinists calipers in A.I.Breveleri's answer will be cheaper and will probably work for a much wider range of situations.
Another type is the Curre-jaw caliper - again with a vernier scale - though both these jaw types are available on calipers with electronic digital readout
There are also a very wide range of external dial calipers, as kris and pcdev identified.