Long lifetime due to robust metal components. Adjustable impact force can be perfectly matched to application and material. Service display indicates an impending carbon brush change. Vario-Lock: 12-fold adjustment of the chisel position, enabling you to adapt it to each work situation (e.g. when using tile chisels).Constant Electronic for constant power under load. On/off switch is comfortable to reach from the main handle. Comes complete with RTec Speed pointed chisel, making it immediately ready for use.