Bosch GSR 18V-50 and GSB 18V-50 Cordless Drill/Driver User Guide
Quick guide for the Bosch GSR 18V-50 and GSB 18V-50 cordless drill/drivers, covering setup, operation, battery management, and maintenance.
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This document provides essential instructions for the Bosch GSR 18V-50 and GSB 18V-50 cordless drill/drivers. The GSR model is designed for drilling and screwdriving, while the GSB model includes an additional impact drilling mode for masonry and stone.

Device description
Key components include the tool holder, keyless chuck, torque and mode selection rings, gear selector, LED worklight, and battery release button.
Operation

- Battery: Insert the charged battery into the handle until it clicks. To remove, press the release button and pull out.
- Direction: Use the rotational direction switch to select forward (left) or reverse (right).
- Operating Mode: Use the mode selection ring to choose between drilling, screwdriving, or impact drilling (GSB model only).
- Speed/Torque: Adjust speed via the trigger pressure. Use the torque ring to select the desired torque for screwdriving. Use the gear selector (1 or 2) for speed range adjustment.
Maintenance and cleaning
Always remove the battery before performing any maintenance or tool changes. Keep the tool and ventilation slots clean for safe operation.
Safety
Always wear ear protection when impact drilling. Hold the tool by insulated gripping surfaces when working near hidden wiring. Ensure the tool is switched off before placing it down.
Manufacturer information
Bosch
Practical help
Common problems
Check battery charge level and ensure the battery is properly inserted.
The tool may be overloaded or the bit jammed. Switch off immediately and clear the obstruction.
Ensure the charger is compatible and the battery is correctly inserted.
Before use
- Ensure the battery is fully charged.
- Select the correct tool bit for the application.
- Set the rotational direction switch to the desired position.
- Select the appropriate gear (1 or 2) for the task.
- Set the torque or operating mode ring to the required setting.
Images and diagrams
- Figure A: Changing tools in the keyless chuck.
- Figure B: Setting the rotational direction.
- Figure C: Adjusting the bit holder.
Model compatibility
- Compatible with all Bosch Professional 18V batteries (GBA 18V and ProCORE18V series).
Manual page author
Emily Carter
User documentation editor
Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.