FS-KM English 2 In the STIHL KombiSystem a number of different KombiEngines and KombiTools can be combined to produce a power tool. In this instruction manual the functional unit formed by the KombiEngine and KombiTool is referred to as the power tool. Therefore, the separate instruction manuals for the KombiEngine.Top performance STIHL KombiEngine for professional use.General For professional u..