Used to measure depth of mechanical work. Very smooth operation as expected from Mitutoyo.

Good product and quick shipping

Good job Mitutoyo. This tool is perfect and includes a foam lined case.

very good

There isn't much to say about depth mics, as there isn't much to innovate upon the design to make it better than others, but I'll cover the important points a tool like this should have.It is a quality Mitutoyo tool as always, and the aesthetics are supurb. Satin finish on the tool body/thimble, and a mirror (presumably lapped) finish on the base. The measuring pin fits very snugly and has a flawless rotation; the screw movement isn't rough, loose, or excessively tight. It measures what it needs to, and does it well.I don't like the plastic ratchet on the end, it could be a little beefier, but it isn't critical for the tool's operation, and with so many cheap knockoff brands out there, I can't blame Mitutoyo for trimming up what they can. Same goes for the plastic locking mechanism. It isn't very easy to lock when taking a measurement, and could be designed better (even if plastic instead of the older metal locks).When I bought this tool, I was stuck between the 2.5" and 4" bases. I'm glad I went with the narrower base, as there are plenty of times when I need to stick this in small areas, and if I need a wider base, parallels or blocks can always extend the reach.