Model DHP484 is a Cordless Hammer Driver Drill powered by 18V Li-ion battery (sold separate). Featuring the Makita Brushless motor, precision engineered to be up to 50% more efficient than a comparative model. Without brushes in place to apply friction a Brushless motor can produce a greater measure of torque per weight. With more torque at your disposal less power is required for day to day use, adding to the motors efficiency and extending the products overall lifetime as maintenance becomes less of an issue.The DHP484 has been developed to succeed model DHP480.