I have shown these pictures to so many people and everyone suspects it's a micrometer of some kind but there's so much more tool than the small measuring piece. Also thought it looked a little like a ring land cleaner but it's not one of those either. Picked it up in a pile of engine tools. Haven't the slightest idea. Maybe a thread measurement tool? please help haha
View attachment 1716056979
View attachment 1716056980
View attachment 1716056981