Feeler gauges, calipers -precision springs outside inside calipers and joint dividers, set 6 inch 150mm Highlights generic brand precision springs outside inside calipers calipers and joint dividers, set 6 inch 150mm Description: This item includes an inner caliper, an outer caliper and a spring divider with the same capacity A transfer measuring tool, does not have a scale of graduation Arc spring ensures even tension over the working range with center mounted quick release adjustment nut Precise measurement: with screw fine adjustment and quick sliding Made of high tensile carbon steel, durable specification: Material: carbon steel Capacity (maximum dimensions can be measured): 150mm / 6inches; 200mm / 8inches; 250mm / 10inches Package Include: 1 Piece Spring Outer Joint Bracket 1 Piece Spring Inner Joint Bracket 1 Piece Spring Separator