The GARANT Master Mute vibration-damping boring bar adjusts its damping behaviour in real time in response to changing machining conditions and can even bore deep holes in hard-to-access components precisely. This results in high-quality surfaces and productivity gains because there is no need to reduce the cutting depth, cutting speed or feed rate. GARANT Master Mute features a new type of damping system, does not need to be calibrated and is now also available for overhang lengths up to 15xD. The tool is compatible with interchangeable cutting heads for the GL, QC and DM systems and can be ordered now from the eShop www.hoffmann-group.com as well as via the 2022/2023 new products catalogue of the Hoffmann Group.

Components are becoming ever more complex, bores are becoming deeper and the materials harder and tougher. At the same time the tolerances demanded are ever tighter and the surface qualities ever stricter. To meet these challenges the Hoffmann Group has developed a vibration-damping boring bar with a new damping mechanism. The damping system of the GARANT Master Mute is designed to respond to external influences in real time. During machining, it neutralises the natural vibrations of the boring bar by resonating at a corresponding frequency. Thanks to these characteristics, the GARANT Master Mute is especially simple to operate and extremely reliable. The damping system is maintenance-free, pre-set at the factory and doesn’t require any laborious adjustments. The GARANT Master Mute is ready for use immediately using the plug & play principle. Due to the excellent vibration damping, users also benefit from low noise during the turning process. Tests have shown that the use of GARANT Master Mute often results in better surface qualities than those achieved by other comparable systems.

The GARANT Master Mute is a typical member of the ‘Garant Master’ product family as it offers innovative technology for even greater productivity during metal cutting. The 'GARANT Master' product range was started in 2015 by the Hoffmann Group with the aim of making high-performance machining even more productive with particularly powerful and reliable tools. The product range has been systematically expanded since then and now offers state-of-the-art high-performance tools for every application.