The Moore & Wright Spring Joint External Calipers have a bow spring to ensure uniform tension over the working range. They have a centrally mounted adjustment screw offering a finer setting than firm joint type calipers. These spring joint external calipers conform to BS3123 standards.1 x Moore & Wright 524R Spring Joint External Calipers 100mm (4in) in Retail Packaging.Additional Information:• Spring Type: External• Size (mm): 100• Size (in): 4
