The DCH133B 20 V max XR brushless 1 In. d-handle rotary hammer is a compact light weight high-performance rotary hammer that has a durable German engineered mechanism that delivers 2.6 joules of impact energy. At the heart of this tool is the DEWALT brushless motor and durable rotary hammer mechanism. With its better than corded speed of application, compact size, light weight and balanced design, this hammer can replace your corded tool. The mechanical clutch enhances user control in a bind up situation and can help minimize sudden torque reaction. The DCH133 is dust extraction ready for the D25301D.