A precision measuring instrument used to accurately measure the wall thickness of tubing and pipe. It consists of a u-frame with micrometer. The fixed anvil is either semispherical or cylindrical in shape.
NSN 6135-01-445-6589
NSN 5910-00-496-4438
NSN 6110-00-923-5017
NSN 5996-01-626-6686
NSN 7035-01-598-7660
NSN 5975-00-087-6640
NSN 5920-01-469-7072
NSN 5999-00-594-9180
NSN 6610-01-156-0810
NSN 6110-01-255-6523
NSN 5950-00-613-8561
NSN 5990-01-315-3754