DEWALT DWE402W 4-1/2" Small Angle Grinder with Wheel 11 Amp AC/DC 11,000 RPM motor designed for faster material removal and higher overload protection Dust Ejection System provides durability by ejecting damaging dust and debris particles that enter the tool through the air intake vents Quick-Change Wheel release allows tool free wheel removal without the need for a wrench One-Touch Guard allows for 360 degree rotation of the guard with a single action Matching wheel flanges allow the use of common accessories