Do more with less. The Makita 18-Volt LXT Lithium-Ion Sub-Compact Brushless Cordless Hammer Driver-Drill Kit (model XPH11RB) is an ultra-compact drilling and driving solution with significantly less weight. The 18-Volt sub-compact hammer driver-drill is part of a new class of compact, with the size and weight of lower voltage tools but with the performance, power and compatibility of 18-Volt. The expansive breadth-of-line of the Makita 18-Volt LXT Series means an 18-Volt battery from any LXT tool will power the 18-Volt sub-compact hammer driver-drill. The XPH11RB has an efficient brushless motor with two speed settings and dual LED lights to illuminate the work area. At only 6-3/8 in. and 2.8 lbs. (with battery) it is an ultra-compact drilling and driving solution with superior comfort and handling. 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. For increased versatility, the tool can also be powered by Makita 18-Volt LXT and compact lithium-ion batteries with the star symbol on the battery indicating star protection inside.