Tools / Power Tools
Bosch GBH 18V-26 D Professional Rotary Hammer User Guide
Quick start guide for the Bosch GBH 18V-26 D Professional rotary hammer, covering battery installation, operating modes, tool changing, and safety instructions.
Table of contents
Quick guide from the manual
The Bosch GBH 18V-26 D Professional is a cordless rotary hammer designed for hammer drilling in concrete, brick, and stone, as well as light chiseling. It is also suitable for drilling without impact in wood, metal, ceramic, and plastic, and for screwdriving.
Device Description
The tool features an SDS-plus tool holder, a mode selector switch for hammer drilling, drilling, and chiseling, and a Vario-Lock function for adjusting the chisel position. It includes a worklight, a battery charge indicator, and an auxiliary handle for secure operation.
Operation
Battery: Use only original Bosch Li-ion batteries. The battery is partially charged upon delivery; charge it fully before first use. To remove, press the release button and pull the battery out.
Operating Modes: Use the impact/mode selector switch to choose between hammer drilling, drilling, and chiseling. Always change modes only when the tool is switched off.
Tool Changing: The SDS-plus system allows for easy, tool-free bit changes. For non-SDS-plus tools, use the provided keyed chuck.
Safety and Maintenance
Always remove the battery before performing any maintenance or changing tools. Keep the tool and ventilation slots clean. Replace a damaged dust protection cap immediately. For repairs, contact an authorized Bosch service center.
Technical Data
The tool operates at 18V, with an impact rate of 0–4350 min⁻¹ and a maximum drilling diameter of 26 mm in concrete.
Manufacturer information
Bosch
Practical help
Common problems
Tool does not start
Check battery charge level and ensure it is fully inserted.
Rapid shut-off (KickBack Control) triggered
Release the on/off switch and press it again to restart.
Battery charge indicator does not light up
The battery may be defective and needs replacement.
Before use
- Ensure the battery is fully charged.
- Check that the correct tool holder (SDS-plus or keyed chuck) is installed.
- Verify the operating mode is set correctly for the task.
- Ensure the auxiliary handle is securely tightened.
- Check that the dust protection cap is not damaged.
Specs in practice
- Max. drilling diameter (concrete)
- The maximum hole size (26 mm) recommended for optimal performance.
- Rated voltage
- 18V, indicating compatibility with Bosch 18V battery system.
Model compatibility
- Compatible with all Bosch 18V Li-ion batteries (GBA 18V and ProCORE18V series).
- Requires SDS-plus accessories for hammer drilling and chiseling.
- Requires a keyed or keyless chuck for non-SDS-plus accessories.
Manual page author
Michael Turner
Technical manual editor
Reviews PDF manuals for structure, safety notes, and practical product details so readers can find the right information quickly.