The core activity of René Gerber AG is the development, manufacture, and distribution of machines and services for surface treatment of workpieces, particularly for deburring, polishing, and rounding of metal and plastic parts. The company offers specialized machines and technologies, such as brush polishing machines, plane polishing machines, and small tools, as well as services like the Surface Center, to support customers in various industries, including the automotive, tool, machinery, and watch industries.