In the powertools market the cords, usually in rubber, are suffering a lot of different mechanical stress in particular vibration and pulls. The stress to cords in this case is mainly delivered at appliance side. Some technical solutions are possible: for example, we have in our range also reinforced heavy Duty Patent cords with special designed construc¬tion and 3 different levels of compound performing differently. Unfortunately, even the most engineered cable will fail if we don’t think in terms of system, not single components. The final reliability is the result of the interaction between cable, tool body, strain relief, grommet and assembling method. We cannot engineer a high performance cable without a co-design activity with customer technical team. Tools and methods of tests are also defined together with customer.