DEWALT DCX4230 18-Volt Lithium Ion Cordless Hammerdrill / Impact Driver Combo Kit with NANO Technology Hammerdrill/drill/driver delivers max. power of 425 unit watts out for efficient driving and drilling Unique 1/2-inch chuck tightens as you work for reduced bit slippage and increased accuracy Impact driver delivers 1,330 in./lbs. of torque for quick, secure fastening Compact, ergonomic design offers increased versatility and operator comfort Includes one-hour charger two 18-volt batteries, 360-degree side handle, contractor bag