I'm looking to measure some depths and widths of an internal groove (.129", .383", .502"). I was thinking of using a Mitutoyo groove micrometer (146-131) but the smallest flange diameter is Ø.25" and the opening on my part is Ø.243". Does any one know of any other options out there that might fit these dimensional constraints? I'm looking more for handheld tools rather than 2D height gauges or CMMs. I've also thought about turning the flange piece to fit my needs.
Refer to model 146-131:
Any advice would be of help.