Groz Spring Outside Caliper 300mm OD – Precision Measuring

The Groz Spring Outside Caliper is a precision measuring tool designed for taking accurate comparative measurements up to 300mm outside diameter. Features a robust spring joint mechanism with roller-pivoting legs and a bow spring tension system, ensuring stable, repeatable readings without deflection. Ideal for engineers, machinists, and trade professionals who need to transfer dimensions to micrometers or precision rules during fabrication and quality control work.