de duas bocas

Over the centuries, the railway was built and repaired manually, using a wide variety of tools and vehicles. It was in the workshops that maintenance, repair or construction of locomotives, carriages and wagons was carried out. The materials for the maintenance and construction of the railway tracks are also kept in these workshops.
In every type of trains related work there are multiple wrenches used to tighten and loosen screws. The head, profile and shaft of these tools have a different shape and dimensions, depending on the shape of the nuts for which they are proposed to.