Abstract: A trigger assembly for a pneumatic nailer includes a frame having a threaded end on which an end member is threadedly mounted. A spring is biased between the body of the nailer and the frame. An end of a bar is connected to the frame and the other end of the bar is connected to a trigger. A limit member is movably connected to the frame and an engaging member is located on a first end of the limit member. An end member is threadedly mounted to the threaded end and a plurality of notches are defined in an end thereof. The engaging member of the limit member is engaged with on of the notches.

Abstract: A nozzle assembly for a pneumatic tool includes a base connected to a magazine and a rod extends from the base. A cover is pivotally connected to the base and a notch is defined in a side of the cover. A retaining member has a passage defined in an intermediate portion thereof so as to receive the rod therein. A spring is biased between a first end of the retaining member and the base. A second end of the retaining member has a hook which is disengagably engaged with the notch. The cover can be pivoted away from the base by releasing the hook from the notch so that the cover will not loose.

Abstract: A nozzle assembly for nailers includes a magazine connected to a body of the nailer and a base plate is connected to an end of the magazine. A nozzle has two grooves with which the two sides of the base plate are movably engaged. A plurality of nail guide holes are defined through the nozzle and communicate with openings defined in the base plate and slots defined in a side of the magazine so that nails engaged with the slots are sent to the nail guide holes to be ejected. Two hooks extend from the nozzle and a cap is mounted on the nozzle by engaging the two hooks with two apertures defined through the cap. Pins extend through the nozzle and are engaged with the base plate.

Abstract: A trigger assembly for a pneumatic nailer includes a frame having a threaded end on which an end member is threadedly mounted. A spring is biased between the body of the nailer and the frame. An end of a bar is connected to the frame and the other end of the bar is connected to a trigger. A limit member is movably connected to the frame and an engaging member is located on a first end of the limit member. An end member is threadedly mounted to the threaded end and a plurality of notches are defined in an end thereof. The engaging member of the limit member is engaged with on of the notches.

Abstract: A top cap of a power nailer includes two annular flanges in the interior of the top cap and an annular space is defined between the two flanges. A piston is movably received in the top cap and a tubular body of the piston is movably engaged with the annular space. The two flanges each have a groove which communicates with the annular space. Two seals are engaged with the two grooves so that the piston movably contacts the seals and the flanges are not scraped by the piston.