Multifunction portable machine tools on diameters from 22 mm.to 1700 mm. The machines will run, on-site and with a single and simple set-up work:boring, internal anda external reporting for welding, drilling, tapping, bringing home the size of any holes or worn oval, giving the range of stability characteristics , precision, compactness, stability and security in an intelligent and harmonious. The W series consists of 8 models, each operating on different sizes; The individual machines operate with precision to the on-site repair of holes and pivot points of machinery of large and small, whose removal would result in downtime and transport in the workshop. Statistically, the use of these innovative equipment reduces the processing time by 85%. Wide field of application, elimination of transportation costs, reduction of processing times, reduction of labor costs, safety and reliability of performance.