Abstract: A plunge type router is disclosed which includes an improved depth lock system operative to exert a clamping force directly on the motor housing and which distributes the clamping force over a substantial surface area thereof whereby the motor housing may be securely retained in position without damaging or distorting the housing. An adjustable depth stop system is also provided which provides a positive, easily, accurately adjustable stop member engageable by a portion of the motor housing and an associated rack and pinion adjustment assembly operative to accurately locate the stop member so as to provide positive control of the depth of cut.