Low-stress inspection punches have the same marking features as nuclear punches. The engraving is carried out with a continuous but rounded wire, and consequently no cracks are provoked in the material marked. This kind of punch requires greater power to impress the engraving in the material but can carry out many different designs. If you wish, we can send you a table of examples of punches that have already been manufactured for other companies, inspection organizations and heavy steel structural works.