Bosch PRO GNF18V-40 Wall Chaser
The Bosch PRO GNF18V-40 Wall Chaser delivers strong cordless cutting for demanding site work. Built with a high performance brushless motor, it provides fast feed rates and consistent results in masonry and concrete. This tool is designed for trade users who need clean, accurate wall chases.
With adjustable groove depths from 10 to 40 mm, the Bosch PRO Wall Chaser adapts to a wide range of cable and pipe installations. It also supports cutting widths from 2 mm up to 3.9 cm, giving you flexibility on every task. Clear markings and baseplate rollers help you guide the tool with confidence.
Power and Control
Ergonomically arranged handles improve balance and control in all working positions. As a result, you can work close to edges with greater precision. The compact body makes it easier to handle in tight areas while maintaining stability during long cuts.
Designed for Site Efficiency
This Bosch PRO Wall Chaser works with two diamond cutting discs to create clean grooves in walls and ceilings. It is compatible with the Bosch Professional 18V System and AMPShare batteries. When paired with EXPERT18V batteries of 8.0 Ah or higher, it delivers up to 1900 W equivalent corded power for heavy duty chasing.
User protection remains a priority. The integrated brake function, restart protection and efficient dust extraction support safer operation. In addition, the Click and Clean interface allows seamless connection to compatible dust extraction systems for a cleaner workspace.




