The Milwaukee M12 FUEL 5/8 in. SDS plus rotary hammer kit provides up to 2X more run time, up to 75% more speed and has the largest SDS plus bit capacity in its class. Milwaukee has combined their exclusive POWERSTATE brushless motor, REDLITHIUM battery pack, and REDLINK Plus intelligence to deliver a 12 V rotary hammer that rivals compact 18 V tools on the market today. At only 10 in. long and 3.9 lbs, this tool provides performance and run time that is comparable to a much larger tool, at a fraction of the size and weight. The electro-pneumatic design allows for drilling of up to 5/8 in. holes in concrete and masonry. For maximum versatility, regardless of application or orientation, the tool also features 2-mode operation, rotary hammer and hammer-only.