DEWALT DWE4120N 4 1/2-Inch Paddle Switch Angle Grinder with No Lock-On, Small 9 Amp AC/DC, 12,000 rpm motor designed for faster material removal and higher overload protection One-Touch Guard allows for 360 degree rotation of the guard Quick-Change Wheel Release allows tool free wheel removal 2-position removable side handle 5/8"-11 spindle thread accepts a wide range of 4-1/2" accessories