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 5935-01-565-7299
NSN 2925-01-177-1598
NSN 5935-01-353-4190
NSN 5998-01-306-1684
NSN 6645-01-648-4439
NSN 5895-00-393-2512
NSN 5905-01-375-0571
NSN 5915-01-032-3004
NSN 5925-01-250-8887
NSN 5945-00-082-1195
NSN 6320-01-478-9351
NSN 6610-00-851-8727