A graduated one piece wood or metal measuring instrument, used in pattern making. The graduations are adjusted to compensate for the shrinkage of metal casting. The shrinkage of cast metal varies and shrinkage rules are made in various graduations. For combination square "shrink" blades, see blade, combination square.
Classification: Other measuring or checking instruments, appliances and machines, nesoi in chapter 90
NSN 6320-01-416-9357
NSN 6130-01-467-4731
NSN 6645-01-191-5081
NSN 6650-00-769-3003
NSN 5998-01-535-7657
NSN 6145-01-395-5904
NSN 7035-01-138-5781
NSN 6150-00-692-7043
NSN 5855-01-147-6024
NSN 5855-00-149-0766
NSN 5945-00-909-8282
NSN 5930-00-104-8619