GROZ PARALLEL CLAMPS – CAPACITY 70MM JAW LENGTH 100MM Manufactured from case hardened steel 45 ± 5HRC. Parallel Clamps are designed for maximum strength and rigidity Equipped with a spring clip A retaining ring holds the loose jaw in alignment when the clamp is being opened or closed. The ends of the jaws are rounded to permit clamping under shoulders or in recesses These clamps are extremely useful for holding work together in tapping drilling and on various machine set ups.