Electronic adjustment of speed and impactAnti-rotation and impact for carrying out, for example, light chiselling work on plaster/tiles or drilling with drill bits in masonryMaximum protection against dust through a new type of sealing systemTool-less changeable tool holder and 13mm quick-action chuckSafety clutch for user and machine protectionInterchangeable carbon brushes for the same power in clockwise and counter-clockwise rotation