# Selecting the working mode

The power tool has two preset working modes per model:

GDR 18V-215: Auto Slow-down (wood) and Auto Shut-off (metal)

GDX 18V-285: Automatic shutdown (ABR) and Auto Shut-off (metal)

To switch between the two working modes, press the function button (20).

Predefined working mode | Function | Recommended application
--- | --- | ---
ABR (GDX 18V-285) | The automatic shutdown (ABR) is a function for releasing nuts: The power tool automatically shuts down when the bolt nut is released. The automatic shutdown prevents the bolt nut from falling down when released from the screw thread. Note: This working mode can only be activated if the power tool is set to anticlockwise. | Screw size: M12
Auto Shut-off (metal) (GDR 18V-215 and GDX 18V-285) | When using the Auto Shut-off (metal) working mode, the power tool automatically stops as soon as the torque increases and the impact function is startedA). This working mode prevents the screw from being over-tightened. Note: The result may vary depending on the material, screws and the amount of force applied by the user. Carry out a test run before any work on the workpiece itself. | Material: Metal (2 mm) Self-tapping screw: 4.2 x 25 mm
Auto Slow-down (wood) (GDR 18V-215) | When using the Auto Slow-down (wood) working mode, the power tool reduces the speed when tightening (impact mechanism in action)A). This working mode prevents the screw from being over-tightened because the user has sufficient time to let go of the on/off switch (9). Note: It is not possible to preselect the speed in the Auto Slow-down (wood) working mode. Note: If screws with a length of < 50 mm are used in the Auto Slow-down (wood) working mode and no impact is detected, it is possible that the power tool may not reduce the speed in good time. | Material: Wood Wood screw: 5 x 50 mm

A)

  The Auto Shut-off (metal) and Auto Slow-down (wood) working modes can only be activated when the on/off switch (9) is fully pressed and the screws are being screwed in completely.