Starrett 37 6 Inside Joint Calliper, Steel, Flat Leg, 0 6" Range

Transfer arm for transfer measurements in awkward places where it is necessary to move the legs after they have been set to size Adjusting screw permits fine adjustment for very accurate measurements Knurled adjusting nut allows for final adjustment after the legs have been set to approximate size and the joint has been locked Spring washer under the disc to maintain proper tension of legs when joint is loosened Curved tips to transfer the measurement of the internal size of an object