The tool can be turned on and off directly on the tool holder hence „stand by“ operation.
No inadvertent turning on of the machine by safety lock.
Automatic interruption of power supply according to the deadman principle: when the switch system is released the machine shuts down.
Additional power switch for the machine on the drive unit.
The switch is located in the direct radius of action of the user at all times: it is not necessary to turn away from the workpiece to actuate the switch.