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D 25730K is a combination hammer in the 9kg class with an output of 1500 Watts. This is the best in power to weight ratio. This hammer is used for heavy duty drilling and for medium chiseling applications. The patented adjustable 2-step-clutch optimizes torque to bit size and elevates the safety of the user. With 18 joules of impact energy the hammer mechanism is the strongest of its class. Visually dominant in the design is the weight-reducing magnesium gear housing. The sculptural and powerful appearance is deduced from the concurrent effort of achieving greatest compactness and robustness. D 25730K meets the new European directive 2002/44/EC describing maximum arm and hand vibration. Three assemblies effect that: The patented spring guided flywheel mass filters vibrations in the main housing. The patented parallel guidance of handle (2 elastomeric bellows) provides reduced handle vibrations. Additionally, the specifically engineered elastomeric handles protect vibration transition to hands.