The hydropneumatic tool RIV942 is used to place Rivsert female rivet nuts from M4 to M12 and Rivbolt male rivet nuts from M4 to M8. This is done using a system of pressure or stroke adjustment in one tool. The mechanical components used in the inside structure of the tool and the hydropneumatic system are more reliable compared to other models. This tool lasts much longer and works better because of a tool feature that reduces the problems caused by the wear and tear of the components. It is an innovative system with many advantages. The Kit assembly comes with a with ring nut gear and no key is no necessary. The commercial screws are used as tie rods. It is light, can be handled easily and works on a one phase trigger mechanism. It has an easy stroke adjustment and the the adjustment ring stops against the counter-ring.