The Milwaukee M12 FUEL 5/8 in. SDS Plus Rotary Hammer Kit provides up to 75% faster drilling, up to 70% less vibration and up to 2X more runtime and the largest SDS Plus bit capacity in its class. Milwaukee has combined its exclusive POWERSTATE Brushless Motor, REDLITHIUM Battery Pack and REDLINK PLUS Intelligence to deliver users optimized performance, overload protection and superior pack construction. The electro-pneumatic design allows for drilling of up to 5/8 in. holes in concrete and masonry. At only 10 in. L and 3.9 lbs., this tool provides performance and runtime that is comparable to a much larger tool, at a fraction of the size and weight. The rotary hammer also features 2-mode operation, rotary hammer and rotation only for maximum versatility, regardless of application or orientation. in addition to the rotary hammer, this kit includes one M12 REDLITHIUM XC 4.0 Extended-Capacity Battery Packs, one M12 Charger and a plastic carrying case. Our M12 REDLITHIUM HIGH OUTPUT XC5.0 delivers 25% more power and runs 25% cooler vs our other M12 REDLITHIUM XC battery packs.