A power tool with first and second housing portions, a powertrain, a mounting hub and a lock bar. The powertrain has an output member that extends from the second housing portion and which is movable relative to an output member axis. The mounting hub is fixedly coupled to one of the first and second housing portions. The lock bar is movably mounted to the other one of the first and second housing portions between a locked position and a first unlocked position. The lock bar cooperates with the mounting hub in the locked position to inhibit relative rotation between the first and second housing portions. Placement of the lock bar in the first unlocked position permits relative rotation between the first and second housing portions.