Tools / Drills
Bosch 18V-EC GSR, GSB Professional Cordless Drill Driver User Guide
Quick guide for the Bosch 18V-EC Professional Cordless Drill Driver, covering assembly, operation, safety instructions, and technical specifications.
Table of contents
Quick guide from the manual
This manual provides essential information for the safe and efficient operation of the Bosch 18V-EC Professional Cordless Drill Driver (GSR and GSB models). Always read the full safety instructions before use.
Device description
The tool is designed for driving and loosening screws, and for drilling in wood, metal, ceramic, and plastic. The GSB model is also designed for impact drilling in brick, masonry, and stone.
Assembly
Always remove the battery before performing any work on the tool (e.g., maintenance, tool change, transport, or storage) to prevent accidental activation.
Charging the battery
Use only the chargers listed in the technical data. The battery is supplied partially charged; fully charge it before first use. The Li-ion battery is protected against deep discharge by Electronic Cell Protection (ECP).
Tool change
The drill spindle is locked when the on/off switch is not pressed, allowing for quick and easy tool changes in the keyless chuck. Open the chuck by turning in direction 1, insert the tool, and tighten firmly by hand in direction 2.
Operation
Setting the rotational direction
Use the rotational direction switch only when the tool is at a standstill. Press to the left for drilling and driving screws, and to the right for loosening screws and nuts.
Setting the operating mode
- Drilling: Set the torque presetting ring (GSR) or mode selector switch (GSB) to the drilling symbol.
- Screwdriving: Set the torque presetting ring to the required torque.
- Impact drilling (GSB only): Set the mode selector switch to the impact drilling symbol.
Speed and torque
The speed can be adjusted steplessly by varying the pressure on the on/off switch. The torque can be pre-selected in 20 stages using the torque presetting ring.
Safety and maintenance
Always keep the tool and ventilation slots clean for safe operation. If the tool becomes blocked, it will switch off automatically (KickBack Control). If this happens, release the on/off switch and press it again to restart.
Manufacturer information
Bosch
Practical help
Common problems
Tool does not switch on
Check if the battery is charged or if the KickBack Control function is faulty (requires service).
Battery charge indicator does not light up
The battery may be defective and needs replacement.
Tool stops during operation
The tool may be overloaded or the battery temperature is outside the permitted range. Wait for the tool to cool down.
Before use
- Ensure the battery is fully charged.
- Check that the correct tool bit is inserted and tightened.
- Set the rotational direction switch to the desired position.
- Select the appropriate operating mode (Drilling, Screwdriving, or Impact Drilling).
- Ensure the gear selector is fully engaged.
Specs in practice
- Rated voltage
- 18V, indicating the battery system compatibility.
- No-load speed
- 0-600 rpm (1st gear) and 0-1900 rpm (2nd gear) for versatile drilling and driving.
- Max. drilling diameter
- Up to 38mm in wood, 13mm in steel, and 13mm in masonry (GSB model).
Images and diagrams
- The manual includes a detailed diagram of the tool components, including the keyless chuck, torque presetting ring, gear selector, and battery release button.
Model compatibility
- Compatible with Bosch GBA 18V and ProCORE18V battery systems.
- Use only recommended chargers (GAL 18..., GAX 18..., GAL 36...).
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.