Starrett 37 24 Inside Joint Calliper, Steel, Flat Leg, 0 24" Range

Transfer arm allows transfer measurements from places where it is necessary to move the legs after they have been set to size Adjusting screw permits close adjustment for fine measurements Once legs have been set to approximate size and the joint locked, final adjustment is made with a few turns of the knurled adjusting nut Joint can be quickly and firmly locked by a partial turn of the large knurled disc Spring washer under the disc maintains proper tension of legs when joint is loosened