Innovative brushless motor technology - higher power, more compact dimensions, longer runtime per battery charge as well as longer service life. Epoxy resin armoured windings protect the motor from abrasive dust particles. Optimised fan system - effectively cools angle grinder and electronics during use and increases service life. Perform & Protect: Electronic brake reliably stops the disc in seconds (<2 seconds). Perform & Protect: Electronic clutch automatically switches off the tool if it jams, protecting both user and machine. Combination of electronic clutch and brake minimises the danger of kickbacks even more effectively. Overload protection to protect user and machine. Paddle switch with dead man function - the machine stops when the switch is released. Protective grille for cooling air slots- protect the motor from coarse dust particles. Quick-release nut - for fast, tool-free accessory change. Tool-free protective hood-quick adjustment. Supplied as standard in T STAK-Box II and as a basic type (without batteries and charger) ideally suited for existing 18 volt or 54 volt XR FLEXVOLT batteries or for the DEWALT "Akku Plus" system.