DEWALT DWE4597N 7-Inch 8,500 Rpm 4.9 HP Angle Grinder DEWALTs Perform & Protect line is designed to provide a high level of: control, dust containment, or low vibration, without sacrificing performance High Power 4.7 HP (maximum motor HP) 8,500 rpm motor Dust Ejection System increases brush life and protects the motor from damaging particles entering the air intake Anti-Vibe Trigger Handle reduces user fatigue caused by vibration Quick Change Guard allows user to quickly adjust guard to redirect sparks