Various causes, including corrosion, wear and high tightening torque, lead to damage in threads. Ruko's procoil thread repair range corrects the damaged and worn out threads using a simple, low-cost, and quick process. Galvanized steel ensures that the internal threads are of good quality and are able to withstand effects of corrosion and temperature. The Ruko range's installation is simple and quick. The thread chasers adjust automatically to the thread diameter and the pitch. They are suitable for left hand and right hand threads (metric and inches) and require no prior thread measurement. The range is used in machine and plant construction, automotive and electrical engineering, power plants and shipbuilding.