Abstract: A power stapler includes a body with a barrel and a handle is connected to the body by a connection plate. The handle has an open bottom end and an end member is engaged with the open bottom end. A connection portion extends from the handle and a magazine is connected between the connection portion and the barrel. The connection portion has a groove for receiving an L-shaped wrench. A safety device is connected to the barrel and has a collar which is threadedly connected to a base member of the safety device so that the collar can be rotated to adjust a distance between the collar and the object.

Abstract: A pneumatic hammer includes a cap connected to a base member with tubular member received in an interior between the cap and the base member. A piston is reciprocatingly received in the tubular member and a piston rod extends from the piston. A spring member is biased between the cap and the tubular member so as to prevent the tubular member from shifting when the pneumatic hammer is put upside down.