Abstract: A portable electric tool having an elongate housing including a first housing member and a second housing member pivotally connected to the first housing member about a pivot axis along a common mating plane. A channel formed adjacent a proximal end of the first housing member cooperates with one of a plurality of apertures formed through a proximal end of the second housing member to form a passage therebetween. A locking mechanism for adjustably positioning the second housing member relative to the first housing member about the pivot axis includes a spring disposed within the passage, a pin biased against the spring shiftable between a locked position and an unlocked position relative to a common mating plane and a locking member adapted to shift the pin between the locked and unlocked positions.