D21570K Percussion Drill/Diamond Core Drill Features Renewed motor delivers improved performance in drilling applications with core bits up to 127 mm in stone or masonry The electronic system provides an electronic clutch, overload protection and extra power Thanks to 2 mechanical speeds, the machine can be used universally for drilling in wood, metal and stone New mechanical clutch increases user protection and control Reliable 16 mm keyed chuck allows for quick bit changes but still offers superior drill bit clamping Renewed selector switch increases ease of use Specifications Spindle 1/2" X 20 U.N.F Power input 1300 Watt Power output 680 Watt No-load speed 0-1250 0-3500 rpm Max. drilling capacity (concrete) 22 mm Max. drilling capacity (stone) 127 mm Collar diameter 43 mm Weight 3 kg Length 380 mm Height 215 mm Standard equipment adjustable side handle depth stop sturdy carrying case