The Bosch GWS18V-45 is a portable cordless grinder designed for professionals who need reliable power. It features a four-brush motor design and optimized gear structure. The grinder is powerful, producing 10,000 no-load rpm, to handle professional cutting and grinding applications. It features a two-position vibration control side handle for better handling and less operator fatigue. It is designed for long tool life, with an optimized brush design. It is engineered with a quick-change, burst-resistant wheel guard and restart protection to avoid accidental startup.