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C. Chisels

In the past, forged chisels were used. The tips of these chisels were shaped differently depending on the hardness of the rock to be worked.

Today, chisels with carbide inserts are mostly used. These have a much longer service life.

Quelle: "Richtlinien für die Ausfürung von Natursteinmauerwerk entsprechend den besonderen Bestimmungen der SBB" / 1946