Outside caliper with solid screw nut designed for reliable, quick and accurate measurement during layout procedures and jobs - Manufactured in Japan to strict standards to ensure accuracy and precision - Legs pivot on a roller and are tensioned via bow spring - Manufactured from stainless steel and feature a spring joint via a solid screw nut - Solid nut requires progressive twisting to wind in and out via the threaded tension barSpecificationsType: Solid nut - Length: 150mm - Jaw opening: 150mm