USER BENEFITS:Electronic management system (EMS) protects the machine, extends the service life, and increases efficiency.Accelerator trigger with lock-off switch.Electronic quick-acting brake.Robust gearbox housing made of die-cast aluminum.Durable 4 pole high-performance motor.Metal quick-clamp chuck with thrust ring and auto lock function.Right/left rotation with safety catch.Ergonomically designed, non-slip, soft grip handle.Integrated LED lamp with persistence function.LED battery capacity display.Removable covering cap for easy change of carbon brushes.Including attachable auxiliary handle, belt clip and bit storage.