GROZ 3-Piece Inside, Outside Caliper & Divider Set. Designed for reliable, accurate layout and measurement jobs. For toolmakers and all mechanics who require finer adjustment and better balance. Designed specifically for transfer measurements & comparing internal/external measurements. Precision made to rigid standards throughout. Manufactured from high grade selected steel with a high-grade polish. Legs pivot on a roller and are tensioned by a bow spring. Legs are machined to a smooth taper. Adjusting nut allows for measurements of fine settings. Fulcrum stud has a large bearing surface preventing side deflection of legs. Finely machined solid nut runs smoothly to secure legs exactly to dimension. Divider points are hardened 50-55 HRC for increased wear resistance. Having set standards of excellence for ourselves, the constant quest is on bettering them. Stringent systems and processes are constantly monitored to ensure conformance and consistency at all stages of production. All our processes comply with the ISO 9001 Quality System Standard.