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.