USER BENEFITS:Electronic management system (EMS) protects the machine, extends the service life, and increases efficiency.Brushless motor with greater efficiency and a longer service life.With soft start, overload protection and restart protection.3-fold winding protection from dust. Reduces motor wear, increases service life. Protective guard on the winding end of the armature and plated winding on the armature.Tool-free adjustment of safety guard.Spindle lock.Hand grip optionally on left or right side.FLEX battery system: suitable for all 18,0 V battery packs.