An electric drill used in stone carving for splitting holes, dowel holes, and other drilled operations in marble and stone.
Trapano elettrico is an electric drill used for boring stone. Le voci del marmo identifies several sculptural purposes: drilling holes for wedges or punciotti, creating a close row of holes to split stone, and drilling for pins that join separate pieces.
Etymology
Italian: trapano, “drill,” + elettrico, “electric.”
Sculptor Notes
A drilled hole often belongs to a larger operation—splitting, pinning, anchoring, or waste removal. The carver should plan hole position and depth according to what the hole is intended to accomplish next.
References
https://levocidelmarmo.sns.it/scheda_oggetti_relazione.php?denom=trapano+elettrico&id=35