Dust Ejection System protects from abrasion damage increasing the life of the toolOverload protection will prevent the motor overheating by shutting off the unit until it cools downSoft start to limit start-up current and reduce kick backTorque limiting clutch reduces the maximum torque reaction transmitted to the operator if the disc jamsNo volt release switch prevents the unit starting when plugged in, even if the switch is lock on. Switch must consciously be reset before power is deliveredRubber grip rear handle provides the user with greater comfort during operationAnti vibration side handle provides the user with greater comfort during operationQuick adjustment tool free guardBrush window allows quick brush replacementSpindle lock for quick wheel changesThree position side handle allows the user to optimise handle postion to give maxium comfort