(57) A rivet gun (1) for threaded rivets or inserts (2) comprises a grip handle (3), a
hydraulic cylinder (20) supported by the handle (3), a unit (9) for holding and retaining
an insert (2) connected to the hydraulic cylinder (20), a pneumatic cylinder (19)
for activating the hydraulic cylinder (20) for traction of the threaded rivets or
inserts (2), and a pneumatic motor (11) for driving the rotation of the holding and
retaining unit (9), a first and second control valve (27, 28) respectively for the
pneumatic cylinder (19) and the pneumatic motor (11). The gun (1) also comprises a
control trigger (42), pivoting on a pin (40) and rotating according to an inward or
traction and a return movement, during its traction movement successively activating
the first and second valves (27, 28), by means of a rocker arm (46) and a lever (49)
.
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