Tools / Drills
Bosch 18V-28 Professional Cordless Drill User Guide
Quick start guide for the Bosch 18V-28 Professional cordless drill/driver. Includes instructions for battery installation, operation, torque settings, and maintenance.
Table of contents
Manual images
Jump to the sectionQuick guide from the manual
This document provides essential operating instructions for the Bosch GSR 18V-28 and GSB 18V-28 professional cordless drills. Always read the full safety warnings before use.
Device Description
The GSR 18V-28 is a cordless drill/driver, while the GSB 18V-28 is a cordless impact drill/driver. Both feature an LED light for the work area and an insulated handle.
Operation
Before first use, fully charge the battery. Ensure the tool is switched off before attaching it to a screw to prevent slipping. Use the gear selector only when the tool is at a complete stop.
- Battery: Remove or insert the battery as needed for charging or storage.
- Drilling/Screwdriving: Select the appropriate mode and torque setting for your task.
- Gear Selection: Use the mechanical gear switch to adjust speed.
- Maintenance: Keep the tool and ventilation slots clean after every use.
Safety Warnings
- Always wear ear protection when impact drilling.
- Hold the tool by insulated gripping surfaces when working near hidden wiring.
- Switch off the tool immediately if the insert jams to avoid high reaction torque.
- Protect the battery from heat, fire, and moisture.
Technical Data
Refer to the table on page 163 of the manual for specific technical data, noise, and vibration information.
Manufacturer information
Bosch
Practical help
Common problems
Tool jams during operation
Switch off the tool immediately. Check if the tool is overloaded or wedged in the workpiece.
Battery not charging or low performance
Ensure the battery is fully charged before first use. Check the charger instructions.
Before use
- Fully charge the battery in the recommended charger.
- Ensure the tool is switched off before inserting the battery.
- Check that the gear selector is fully engaged.
- Ensure the correct bit is mounted and secured.
- Wear appropriate personal protective equipment (eye protection, ear protection).
Images and diagrams
- Page 158: Battery removal and insertion.
- Page 158: Mounting application tools.
- Page 159: Setting rotational direction.
- Page 159: Setting torque.
- Page 160: Selecting drilling mode and gear selection.
Model compatibility
- Use only Bosch-recommended batteries and chargers.
- GSB models are additionally intended for impact drilling in brick, masonry, and stone.
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.