DeWalt angle grinder DWE4238

The brushless motor delivers greater efficiency and durability
Speed control for ultimate control in more applications
Electronic brake stops the wheel quickly when the trigger is released
Electro-mechanical clutch reduces kickback when the grip is pinched or stopped
No-volt switch prevents the unit from starting unexpectedly when power is restored.

The switch must be deliberately reset before power is applied
Soft start improves user control by reducing the movement of the tool on startup
Vibration reducing handle.