Well over 30 years of transmission experience means that you have encountered your fair share of tricky repairs. Over the past decades, all components of the powertrain have developed to a point where special tools usually are needed in order to repair and install the gearboxes. The degree of difficulty increases the newer the car is and the more automated the shift is. Ola Hellsten had acquired the tooling company Sandblom New Hammer in early 80's and started designing and making tools for his own transmission rebuilding needs. It didn't take long for other rebuilders to notice the value of the practical tools. The transmission tools of Sandblom New Hammer can be found in professional workshops all over the world.