DEWALT DWE4559N-Angle Grinder, 9-Inch, 6,500 Rpm, 4.7-HpThe DWE4559N Angle Hand Grinder has a high power 4. 7 HP motor with overload protection and 6,500 rpm for optimal material removal with 9 inch grinding wheels. Dust Ejection System prevents harmful dirst from entering the motor of the grinder tool. Includes 9" Guard 3 Position Side Handle Features High power 4. 7 HP (maximum motor HP) 6,500 rpm motor provides overload protection provides higher operating speeds under load Dust Ejection Systemincreases