Found this while looking for the Northwest corner of a parcel. Was buried about 6" below a square piece of steel tube. I believe it is a magnet of some kind but have never seen one before. Any thoughts?
Looks like a test gauge we used to use when running cnc machines to check bore diameters.
ontarget1, post: 355095, member: 9989 wrote: Looks like a test gauge we used to use when running cnc machines to check bore diameters.
That makes sense to me. It looks like it was custom-made to check a hole spec'd to be no smaller than 0.167 and no larger than 0.171, in whatever units those are (inches would be my guess).
http://niigataseiki.trustpass.alibaba.com/product/126889482-101714349/limit_plug_gauge_for_measurement_tests_of_holes_and_shaft.html&apos ;">limit plug gauge for measurement tests of holes and shaft
DDSM