Abstract: A circular saw has a housing enclosing a motor for driving an output shaft about an axis of rotation. An upper bladeguard is immovably secured to the housing and has a rear wall defining an arcuate slot. A rectangular base plate is pivotally attached at its forward portion to the saw housing for swinging movement about a pivot axis parallel with the output shaft and disposed substantially forwardly thereof. An arcuate bracket arm has one end thereof connected to the rear of the base plate. A fastening element is mounted on the other end of the bracket arm and is received within the slot in the upper bladeguard. The operator may adjust the base plate by grasping the fastening element and moving the same along the slot in the upper bladeguard.

Abstract: A unitary rechargeable battery pack includes a plurality of axially aligned battery cells coupled to each other in electrical series with an insulated housing surrounding and enclosing the cells. The housing includes complementary halves detachably connected to each other. First, second and third electrical terminals provide two positive voltages and a common or negative voltage terminal, respectively. First and second and third openings in one end of the battery pack expose the first, second and third terminals for electrical connection. The openings are accessible for connection in a 90.degree. quadrant at one end of the battery pack.

Abstract: A magazine assembly for a fastener driving tool has an elongated fastener carrier defining a fastener feed path. The carrier is pivotally mounted about an axis parallel to the fastener feed path for movement between an operative, refill and an unjam position. In the operative position, the elongated carrier is latched by a latch assembly disposed in the forward portion of the tool. A pusher advances the fasteners forward to a nosepiece assembly. In one embodiment, retraction of the pusher releases the latch allowing the elongated carrier to pivot about an axis parallel to the fastener feed path under the influence of a spring to the refill position. In an alternate embodiment, the latch assembly is provided at the rear of the tool and is not interlocked with the pusher. A nosepiece assembly, secured to the forward end of the tool, defines a fastener drive track for guiding fasteners driven into a workpiece.