120 V Hammer Drill  that delivers superior performance and maximum run time. Robust magnetism is projected through the unit to give users fastener retention, enhancing the overall user experience and functionality.Tthe fastest charge times in their categories, so they spend more time working and less time sitting on the charger.For improved tool performance and extended battery life, Makita created Star Protection Computer Controls. Star Protection is communication technology that allows the Star Protection-equipped tool and battery to exchange data in real time and monitor conditions during use to protect against overloading, over-discharging and overheating.