Abstract: A punching-depth adjusting device for use with a nailing gun is adapted to cooperate with the conventional connecting device and has a scale sleeve (16), a sleeve (14), and a resilient C-ring (12). The scale sleeve (16) has an outer periphery and multiple cutouts (162) partially defined around the outer periphery. The sleeve (14) movably sleeves around the scale sleeve (16) and has a through hole (144) defined through the sleeve (14). The resilient C-ring (12) clips on the sleeve (14) and selectively engages with the scale sleeve (16) via the through hole (144). Thereby, the sleeve (14) is enabled to be located at different axial positions to arrange for a predetermined length of a nail to protrude from a workpiece.

Abstract: A punching-depth adjusting device for use with a nailing gun is adapted to cooperate with the conventional connecting device and has a scale sleeve (16), a sleeve (14), and a resilient C-ring (12). The scale sleeve (16) has an outer periphery and multiple cutouts (162) partially defined around the outer periphery. The sleeve (14) movably sleeves around the scale sleeve (16) and has a through hole (144) defined through the sleeve (14). The resilient C-ring (12) clips on the sleeve (14) and selectively engages with the scale sleeve (16) via the through hole (144). Thereby, the sleeve (14) is enabled to be located at different axial positions to arrange for a predetermined length of a nail to protrude from a workpiece.

Abstract: A pneumatic hammer includes a piston rod extending from an aperture defined through the casing and a collar member is mounted to the piston rod and engaged with the aperture so as to limit the piston rod from shaking when the piston rod reciprocatingly moves. The collar member is easily removed from the aperture so as to mount a tube to the piston rod and a hammer head is therefore connected to the lower end of the piston rod.

Abstract: A magazine structure for a power stapler includes a magazine with a cover slidably connected thereto, an end board disposed to the magazine and having an elongate opening defined therethrough, a stopper board disposed to the end board and having a recessed portion and a slot defined in a bottom defining the recessed portion. A guide plate received in the slot and has two elongate apertures transversely defined therethrough, two pins respectively extending through the stopper board and the two elongate apertures so that a front side of the guide plate maintained to protrude in the recessed portion when an impact plate of the stapler actuating to the guide plate.