The DEWALT DCG200T2 XR FlexVolt Wall Chaser offers unrivalled run time and performance. Heavy-duty construction applications can be completed without the need for mains power. The high torque, brushless motor is perfect for wall chasing applications. The 2 diamond discs have been engineered to cut simultaneously into material. There is also an easy-to-use tool free blade height adjustment setting with park position. Once the in-between material is removed, the channel can be used to sink wires or pipes below surface. The Wireless Tool Control (WTC) transmitter allows the tool to be wirelessly paired with another WTC device such as a dust extractor, enabling for automatic activation and shutdown. DCG200T2: 2 x 18/54V 6.0/2.0Ah Li-ion BatteriesDCG200NT: Bare Unit, No Battery or Charger Specification: No Load Speed: 9,000/min.