Starrett 24" Flat leg Lock Joint Fine Adjustment Caliper F*S

Description

I bought these in 1974 - they are used to measure the distance between two opposing sides of an object, the Starrett 36-24 lock joint outside caliper with fine adjustment has a leg length of 24” (600 mm) but opens to approximately one-third larger than the leg length. Inwardly curving leg tips measure the external size of an object. Legs are made from high-grade steel and are ruggedly constructed and well-finished. The locking joint can be quickly and firmly locked by a partial turn of the large knurled disc. The adjusting screw permits fine adjustment for very accurate measurements. Knurled adjusting nut makes the final adjustment after the legs have been set to approximate size and the joint has been locked. The spring washer under the disc maintains proper leg tension when the joint is loosened. Curved tips transfer the measurement of the external size of an object.