Bosch 1803EVS 5-Inch Variable Speed Angle Grinder 2-Position Vibration Control Side Handle - Reduce Vibration up 60% for increased comfort and less fatigue Directed Airflow - Unique design diverts dust away from switch and vital components Epoxy Coated Field Windings - provides ultimate protection against abrasive dust and debris Sealed Switch - Keeps debris out of the switch mechanism and extends switch life Service Minder Brushes - Eliminates guesswork, stops the tool when preventative maintenance is required