The Makita DLX2278TX1 18V cordless brushless twin kit includes DHP484Z 2 speed brushless combi drill and DHR171Z brushless SDS plus rotary hammer drill. This kit comes with 2 x 5.0Ah batteries, charger and tool bag. The Makita DHP484 is a Cordless Hammer Driver Drill powered by 18V Li-ion battery. It is ideal for professional and DIY use 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 motor’s efficiency and extending the products overall lifetime as maintenance becomes less of an issue and The Cordless DHR171Z Brushless Rotary Hammer from Makita is ideal for working in tight spaces and overhead. The DHR171 has an efficient Makita Brushless Motor for up to 50% longer run time, increased power and speed, and longer tool life. It has 2-mode operation for “rotation only” or “hammering with rotation”, with 0-680 RPM, 0-4,800 IPM and 1.2 Joules of impact energy for fast and efficient drilling. The compact size and lower weight mean reduced fatigue for operators, especially for overhead applications.