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 6135-01-350-2932
NSN 6150-01-652-7823
NSN 6650-00-144-4555
NSN 6685-01-131-6497
NSN 5925-01-408-6577
NSN 5999-00-105-5515
NSN 6240-01-432-3996
NSN 5910-00-133-2952
NSN 5960-01-030-1304
NSN 5910-01-286-2803
NSN 5998-01-373-3190
NSN 6135-01-079-7852