Monolithic Italian Marble Calacatta Viola, Columns Installation | Architect Simone Soardo Installation of one-piece (monolithic) marble columns, 6.5 meters high, 5.8 tons of weight. Italian marble Calacatta Viola. These columns are reinforced with one metal pilaster inserted inside and along all the marble "cylinder". The hole was made during three weeks of work, paying attention at: - speed rotation of tool, - vibrations - and overall at the direction of the "gallery" we were doing. It was quite difficult to keep the straight direction and the alignment between the entrance hole (at the beginning) and the exit hole (at the end of the "excavation". A very unique and "emotional" work for an exclusive Client.   https://www.youtube.com/watch?v=Ez0dkzb_UQ8