The Moore & Wright 516R Spring Joint Internal Caliper with 150mm (6in) capacity is the larger option, providing extended reach for measuring bigger internal dimensions. This size is ideal for applications requiring measurement of larger bore diameters, internal slots, and recesses commonly found in heavy engineering, automotive work, and industrial maintenance. Constructed from polished tool steel, this 150mm caliper incorporates a bow spring that delivers uniform tension across its full working range, maintaining measurement accuracy throughout. The centrally mounted adjustment screw allows for fine, controlled adjustments even at maximum extension. Meeting BS3123 standards, it offers professional-grade precision and reliability. Features and Benefits: • 150mm (6in) capacity for larger internal measurements • Polished tool steel construction for durability • Bow spring provides consistent tension throughout range • Centrally mounted adjustment screw for precise measurement control • Conforms to BS3123 quality standards Contents: • 1 x Moore & Wright 516R Spring Joint Internal Caliper 150mm (6in) in Retail Packaging Specifications: Spring Type: Internal Size (mm): 150 Size (in): 6