Abstract: Each one of the arms (2a, 2b) includes a lower end (5) closer to said base (3) which closes the arms (2a, 2b) when pushing a pipe against it, and an upper end (6) farther from said base (3) which includes means for blocking both arms (2a, 2b) when they are closed. The clamp (1) comprises, at the lower end (5) of the arms (2a, 2b), attaching means to the end of the outlet mouth (11) of a fixing device.

Abstract: A piece (1) for fixing objects to a wall or the like which comprises removable attaching means to the end of the outlet mouth (9) of a tool for propelling an element for fixing the piece to the wall or the like, and means for holding the object to be fixed. The means for attaching the piece (1) to the end of the outlet mouth (9) of the tool comprise at least a rib (6), which is longitudinal to the axis of the mouth (9), and in contact with the outer surface of the end of said mouth (9).