Tools / Power Tools
Bosch GBH 18V-26 D Professional Cordless Rotary Hammer User Manual
Quick guide for the Bosch GBH 18V-26 D Professional cordless rotary hammer, covering operation, tool changes, safety, and maintenance.
Table of contents
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Jump to the sectionQuick 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 device features an SDS-plus tool holder, a worklight, and a mode selector switch for choosing between hammer drilling, drilling, and chiseling. It includes a depth stop for precise drilling and an auxiliary handle for better control.
Operation
To operate the tool, insert a charged battery until it clicks. Select the desired operating mode using the impact/mode selector switch. Ensure the rotational direction switch is set to clockwise for drilling and chiseling. Adjust the speed/impact rate by varying the pressure on the on/off switch.
Tool changes
The SDS-plus system allows for easy tool changes. To insert a tool, clean and grease the shank, then insert it into the tool holder until it locks automatically. To remove, push the locking sleeve back and pull out the tool. For tools without SDS-plus, use a keyed chuck.
Safety and maintenance
Always remove the battery before performing maintenance or changing tools. Keep the tool and ventilation slots clean. Replace a damaged dust protection cap immediately. For service, contact Bosch customer support or visit www.bosch-pt.com.
Official resources from the manual
Manufacturer information
Bosch
Practical help
Common problems
Tool does not start
Check if the battery is charged and properly inserted.
Tool stops during operation
The overload clutch may have triggered due to jamming. Switch off the tool and release the jammed bit.
Rapid shut-off (KickBack Control) triggered
Release the on/off switch and press it again to restart. The worklight will flash when this feature is active.
Before use
- Ensure the battery is fully charged.
- Check that the correct tool holder (SDS-plus or keyed chuck) is installed.
- Verify the auxiliary handle is securely tightened.
- Ensure the dust protection cap is not damaged.
- Check that the rotational direction is set correctly.
Specs in practice
- Impact energy
- 2.5 J, indicating the force of each hammer blow.
- Max. drilling diameter (concrete)
- 26 mm, the maximum hole size for concrete.
Images and diagrams
- Page 3: Overview of components including SDS-plus holder, mode selector, and auxiliary handle.
- Page 4: Procedures for auxiliary handle adjustment and chuck changes.
- Page 5: Depth stop adjustment and screwdriver bit usage.
Model compatibility
- Compatible with GBA 18V and ProCORE18V batteries.
- Use only chargers listed in the technical data.
Manual page author
Emily Carter
User documentation editor
Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.