The reverse engineering is a relatively young process, raised up with the appearance of laser and photogrammetric scanners on the market.
It is most used for aftermarket accessories and spare parts making, starting with the "points cloud" derived from the product scanning, that once imported in a CAD system, allows to get back to 3D model, with some precision, depending on chosen tolerances defining the off-set error from the original part.
Romano Gaspari Design Division makes use of high precision tools that can guarantee tolerances up to
50 microns (0.05 mm).