A rotary cutting tool or milling machine used in stone workshops to remove material, cut profiles, create channels, or machine controlled surfaces.
Fresa can refer to a rotary milling cutter or, by extension, the machine carrying it. The term is recorded among the machinery used in Pietrasanta marble workshops by Le voci del marmo.
In stoneworking, milling tools may produce profiles, channels, recesses, planar cuts, or repeated forms with far greater speed than hand chiseling.
Etymology
Italian fresa, “milling cutter.”
Sculptor Notes
Machine milling is strongest where geometry and repeated motion are useful. The sculptor still has to judge where a machined surface should stop and where hand carving must recover transitions, irregularity, and final character.
References
https://levocidelmarmo.sns.it/lista_times.php