The DWE46144N 6"(150mm) High Performance Cut-Off/Grinder combines the features of the Adjustable Type 1 Cutoff Guard with an E-Clutch® that shuts the grinder off when a wheel pinch or wheel stall occurs, extending the life of the gears and motor. Dust Ejection System™ technology clears dust and debris for extra protection. Power tool shuts off before overheating with Power-Off®Advanced Overload Protection.