DEADMAN SWITCH AND SLIM DESIGN.USER BENEFITS:Paddle switch with deadmans function: safe to operate due to an ergonomically integrated non-slip switch.Long grinding spindle ? ideal for working on hard to reach places.Spindle lock for simple change of tools.Aluminium die-cast bearing flange for long service life of the machine.Vario-Constamatic (VC)- Electronics for work with materials requiring customised speeds, which remain almost constant under load.Thumbwheel for Speed Preselection.Electronic safety shutdown of the motor for safe working in case the tool stops unexpectedly.Restart protection: prevents unintentional start-up after power supply interruption.Electronic overload protection for long service life.Precise collar for stationary use.Removable protective rubber cap for comfortable and safe working.Slim design for ideal handling.Precision collet for precise concentricity.Metabo Marathon motor with patented dust protection for long service life.