General description The Moore & Wright 56R Spring Joint Jenny Caliper is a precision measuring tool made from polished tool steel, featuring a hardened marking leg for enhanced durability. It is designed for accurate measurements in various applications and is also known as Hermaphrodite calipers. Technical specifications Material: Polished tool steel Hardened marking leg: over 550Hv Size: 150mm (6 inches) Type: Spring joint Compatibility and accessories Suitable for general measuring tasks requiring precise internal and external measurements Installation No installation required; ready to use out of the box Usage Use the caliper to measure internal, external, and depth dimensions with accuracy Adjust the central screw for fine tuning of measurements