Specifications Model:W 85-115 Rated input power: 850 watts Output power: 520 watts Grinding disc diameter: 115 mm Speeds at no load: 11000 /min Speed at rated load: 7300 /min Spindle thread: M14 Weight (excluding mains lead): 1.8 kg Additional Information Slim motor housing for optimum handling Die cast aluminium gear housing for rigidity and optimal heat dissipation Four air outlets for increased circulation Optimised spindle for decreasing disc vibration Easy carbon brush change Auto stop carbon brushes Hard wearing gears (3 Year Warranty) Metabo power tools have a particularly long service life. As they rarely require repairs, Metabo has developed an additional warranty for you - the XXL warranty. If you register, the normal 1 year warranty is extended to 3 years. Registration is only possible within 4 weeks of the purchase date. Register your product now at http://www.metabo-service.com