Internal Dial Calipers

Product Features:

  • Accurate, repeatable and reproducible measurements
  • R&R Rated.
  • Direct reading in absolute numbers
  • Spring-loaded contacts/arms
  • Lightweight, easy to use
  • Contact pressure 1.2-2.5 N standard
  • Arm pressure can be reduced to measure thru wall or soft materials
  • Reach extended measuring depths thru 29.0″


Useful for checking O-rings, grooves, and wall thickness. Custom contact points available – ruby, steel, and carbide. Deep, long reach arms available to 29″. Dial or electronic indicators available.


Dyer Gage
Fowler (Fred V. Fowler Co.)
Mueller Gage