Versatile hammer with 3 functions: hammer drilling, drilling and chiselling. Vario-Tacho-Constamatic (VTC) electronics for working at customised speeds to suit various application materials, keeping power constant under different loads. Metabo S-Automatic safety clutch for mechanical decoupling of the drive that ensures safe working if the drill stops unexpectedly. Marathon-motor with dust protection ensures long lasting tool. Restart protection to prevent unintentional start-up after power supply interruption. Quick change between SDS Plus hammer chuck and keyless chuck for different applications. Preselection of the speed and impact rate with thumbwheel, with two-speed gear unit for effective drilling in wood and metal. With a lockable switch for comfort during continuous operation.