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.