The small angle grinder has a brushless motor that elongates motor life and requires no time changing out worn brushes. The wheel stops within 2 secs or less. Its kickback brake engages maximum force to stop the wheel when there is a pinch, stall or bind-up to reduce kickback and will shut-off for further protection.Brushless motor requires no brush changesKickback Brake engages when a pinch, stall or bind-up event is sensed and the electronic brake engages with maximum force to quickly stop the wheel, reduce the movement of the grinder and shut the grinder offTwo-stage trigger requires two actions to activate toolBrake stops wheel in 2 s or less on averageE-Switch Protection when the On or Off trigger switch has a no-volt release function