DEWALT D28144N 6-Inch High Performance Angle Grinder with No Lock-On Paddle Switch Dewalt-built G55 (AC) 13-amp, 2.3-horsepower, 9,000-rpm motor designed for faster material removal and higher overload protection No lock-on paddle switch prevents the user from locking the grinder on Dual clutch protection prevents the gears from stripping and motor from burning up in a wheel pinch/stall increasing durability 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