The powerful 36 volt rotary hammers are getting even better: Bosch are replacing their leading models with the new GBH 36 V-LI Plus Professional and the GBH 36 VF-LI Plus Professional. You can choose between the model with fixed chuck (V) and the model with changeable chuck (VF). Both rotary hammers improve on their predecessors by providing more power, a longer lifetime, new convenience features, vibration damping and longer battery runtimes. They will therefore set new standards in the class. As tests conducted by the SLG testing and certification institute show, both cordless rotary hammers not only achieve significantly better results in terms of drilling rate, they are actually faster than comparable corded tools in the three kilogram class.