Large 19 mm. optimised hammer mechanism delivers corded drilling performance. Efficient & compact gearbox for longer runtime & lighter weight. Extremely compact design & rear mounted battery for excellent balance & optimum comfort. Internal mechanism connected to external housings via spring dampeners meaning significantly lower vibration, reduced user fatigue allowing longer operating periods. Air cooled batteries supplied as standard improving runtime when batteries charged hot & extending battery life. Impact-stop mode for rotary drilling only in wood, ceramic, steel. Rotation stop for light chiselling applications in plaster, tiles & render. Electronic motor brake for additional control. Spring loaded battery latch system & guiderail for quick change & secure battery fitment. Modular component design for trouble free servicing. Rubber coated grip to reduce surface vibration & user fatigue.