As I was going through some old tools I came across a few I had never seen before. The first photo shows what looks like an old brass manual boring tool. It was stored in the bag in photo with the bits. I messed around with it and couldn't figure out how it was used. Hoping somebody has seen it before and could fill me in. Photos 2&3 show what I though was an inside micrometer but it has no markings on it for measurement. Fully closed it is about 1 1/2" and open it is around 2 1/4". With the ends I was thinking maybe some kind of adjustable standard for micrometers. Photos 4&5 are what I initially thought were trammel points but I have never seen any with set screws. Photos 6&7 I have no clue. Any knowledge passed down would be greatly appreciated.
Thanks
Josh
Thanks
Josh