SDS-max® Unmatched power to weight ratio, 13 A, 6.8 ft-lbs impact energy and 8.1 lbs, best performing rotary hammer in its class. Active Vibration Control™ vibration reduction in the hammer mechanism and the grip area provides maximum user comfort for extended periods of work. One-Hand™ SDS-max® one-hand tool free SDS-max® system makes changing bits easier than ever before while maximizing jobsite productivity. Constant response circuitry, maintains speed under load and overload protection. Turbo™ power, delivers 20% more power in hammer only mode. Vario-Lock™ positioning, rotates and locks chisel into 12 different positions. Auto-Max™ variable speed dial, ensures maximum speed every time the tool is turned on. Service Minder™ light indicates when preventative maintenance is required. Patented cord turret, reduces cord wear.