The brushless EC-TEC motor and 5.0 Ah Li-Ion Bluetooth® battery allow long-lasting work and up to 55 mm:|Exceptional operating features - with plunge-cut depth adjustment, remote-controlled pendulum guard, slitting knife and 0-50° angle adjustment,|One battery for all tools - Li-Ion Bluetooth® batteries 5.0 Ah and 8.0 Ah can be used in all cordless tools of the same class (exception: cordless grinders ETSC; DTSC; RTSC and cordless vacuum cleaner CTC SYS), And of course the same applies in reverse, with the AIRSTREAM-enabled SCA 16 quick charger actively cooling the battery during charging - so the battery is ready for use again even faster than before, In addition, the battery connects wirelessly via Bluetooth® to the Bluetooth® module of the CLEANTEC system vacuum cleaner (optional on CT 26/36/48, standard on CTC MINI I and CTC MIDI I and CT MINI I and MIDI I) and automatically starts the system vacuum cleaner when you connect the HKC 55:switch on,