A tool for installing and/or removing a fastener includes a body having an opening having a center axis. The tool includes a plurality of grips coupled to the body and angularly spaced apart from each other around the opening. At least one of the grips is radially movable relative to the opening. The tool includes a plurality of lugs coupled to the body. The lugs limit radially inward movement of the at least one of the grips. The tool includes a cam coupled to the body. Rotation of the cam about the central axis in a first rotational direction relative to the body moves the at least one of the grips radially inward. Pins and lugs serve to prevent escapement of the grips, which constitute a foreign object debris that may cause mechanical or electrical damage.

A cartridge mechanism for monitoring a clamping force of a temporary fastener includes an inner assembly, an outer assembly, and a displacement indicating system. The inner assembly has an inner cap and an inner spring. The outer assembly has an outer cap and an outer spring. The displacement indicating system indicates an amount of compressive displacement of the inner and outer springs that represents attainment of a preliminary clamping force exerted on the structure by the temporary fastener. The inner spring is uncalibrated and has a spring constant substantially equal to that of the outer spring, which is calibrated to one-half the preliminary clamping force at the amount of compressive displacement indicated by the displacement indicating system. The outer assembly is removable from the inner assembly to result in a final clamping force exerted by the temporary fastener on the structure of approximately one-half the preliminary clamping force.

An installation tool (14) has a tool body (50) comprising a first opening capable of blocking the axial end of the body (26) of a fastener (12) and an actuating device (52), rotatable relative to the tool body and comprising a second opening capable of blocking a fastener actuating element (28). The tool includes a pressure chamber (120) in the tool body a duct (122) connecting the pressure chamber to the first opening (62), a blocking element (124), movable in the duct between a retracted position and a projecting position; and a fluid inlet (55) opening onto the pressure chamber. An inflow of fluid into the pressure chamber moves the blocking element (124) to the protruding position.

A pair of cleco pliers includes a first handle defining a first receptacle at a distal end thereof. In addition, the pair of cleco pliers includes a second handle pivotably coupled to the first handle and defining a second receptacle at a distal end of the second handle, and wherein the first receptacle and the second receptacle are configured to jointly receive a temporary fastener. The pair of cleco pliers further includes one or more magnets received in at least one of the first receptacle and the second receptacle configured to secure the temporary fastener within the first receptacle and the second receptacle via a magnetic biasing force applied by the one or more magnets to the temporary fastener.

An installation tool (14) has a tool body (50) comprising a first opening capable of blocking the axial end of the body (26) of a fastener (12) and an actuating device (52), rotatable relative to the tool body and comprising a second opening capable of blocking a fastener actuating element (28). The tool includes a pressure chamber (120) in the tool body a duct (122) connecting the pressure chamber to the first opening (62), a blocking element (124), movable in the duct between a retracted position and a projecting position; and a fluid inlet (55) opening onto the pressure chamber. An inflow of fluid into the pressure chamber moves the blocking element (124) to the protruding position.