Abstract: A nose assembly for a nail gun includes a nose piece connected to a gun body and the nose piece has a guide channel in a surface thereof. A resilient strip has its first end fixedly connected to the nose piece and a guide base is located below the nose piece. The nose piece has an extension channel which is in alignment with the guide channel, and a second end of the resilient strip is connected to the guide base. Two oblique surfaces are respectively defined in two inside defining the extension channel and a block extends from a surface defining the extension channel. Two grooves are defined between the block and the two oblique surfaces so that two legs of nails will be separated and inserted into the grooves before penetrating into document.

Abstract: A trigger assembly for a power stapler includes a U-shaped trigger member pivotally connected to the power stapler and having two inclined and elongated slots in the two plates thereof. A pressing member has a flange extending from one of two surfaces thereof and an aperture is defined through the pressing member. The pressing member has two lugs so that the pressing member is pivotally between the two plates of the trigger member. A pin movably extends through the slots in the trigger member and the two lugs. The pressing member is slightly lifted within the slots when the piston rod of the power stapler inserted into the aperture for the single shoot so that the pressing member is not returned to its original position except the safety member is removed from the pressing member.