Powerful 11 Amp, 11,000 RPM Motor: Provides maximum performance and durability. AC/DC : Versatility to be used with AC or DC power supplies. Tool-Free Accessory Change: Easily change "All Accessories" without a wrench. Tool-Free Adjustable Guard: Provides quick guard installations and adjustments. Advanced Airflow System: Maximizes airflow and reduces debris ingress, improving motor life and performance. Debris Baffles protect internal components by deflecting damaging debris out of the airflow at the intake vents. External Brush Doors reduces service time by providing easy access to brushes. Trigger Grip Handle provides better control, reach and leverage.