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 6145-01-460-0598
NSN 5996-01-433-2253
NSN 5915-01-648-4865
NSN 6645-01-425-1673
NSN 5965-00-162-1244
NSN 4140-01-653-4655
NSN 6240-01-358-7127
NSN 6610-00-007-1527
NSN 5945-00-986-2532
NSN 6650-01-306-1326
NSN 5930-01-539-9626
NSN 6645-01-421-2445