DeWALT DCD470N-XJ 54/18volt FLEXVOLT Angle Joist Drill Body Only. Angle drill with a 54V Brushless Motor for increased power and runtime. Joist drill has an adjustable bail handle and 2-position side handle for safety, leverage and control. E-Clutch is a Perform and Protect feature for optimum control and safety. So, DCD470N detects reactionary torque caused by a bind-up or stall and reduces speed to a manageable level until control is regained. Also, Dewalt DCD470N-XJ has 2 variable speed ranges (0-400 / 0-1320 rpm) to match appropriate torque and speed to the application.