Crimping pliers comprising a) two hand levers (2, 3), b) a pivot bolt via which the hand levers (2, 3) are pivotably connected to one another, c) two pulling bars (16, 17) linked to the hand levers (2, 3) at a distance from the pivot bolt, d) a crimping pliers head with da) a pliers head frame, db) a spring device and dc) a die half, which - is guided displaceably in the direction of a crimping axis on the pliers head frame, - is supported by the spring device on the pliers head frame in such a way that the spring device biases the die half in an opening direction, and - has a pivot bolt accommodation which is open on one side, e) the pulling bars (16, 17) being connected to the pliers head frame via coupling devices, the pivot bolt being arranged in the pivot bolt accommodation, a pivoting of the hand levers (2, 3) causing a relative movement of the die half with respect to the pliers head frame, and a movement of the die half and a pivoting of the hand levers (2, 3) taking place in a pliers head plane, characterized in that f) at least one coupling device, preferably both coupling devices, has/have a coupling recess (45; 46) open on one side and a coupling element (22; 23), wherein the coupling between the coupling recess (45; 46) and the coupling element (22; 23) fa) can be established by means of a pivoting movement of the pulling bar (16, 17) in the pliers head plane and by means of an entry of the coupling element (22; 23) into the coupling recess (45; 46) brought about by this pivoting movement, and fb) is secured by the spring device. a) two hand levers (2, 3), b) a pivot bolt via which the hand levers (2, 3) are pivotably connected to one another, c) two pulling bars (16, 17) linked to the hand levers (2, 3) at a distance from the pivot bolt, d) a crimping pliers head with da) a pliers head frame, db) a spring device and dc) a die half, which - is guided displaceably in the direction of a crimping axis on the pliers head frame, - is supported by the spring device on the pliers head frame in such a way that the spring device biases the die half in an opening direction, and - has a pivot bolt accommodation which is open on one side, da) a pliers head frame, db) a spring device and dc) a die half, which - is guided displaceably in the direction of a crimping axis on the pliers head frame, - is supported by the spring device on the pliers head frame in such a way that the spring device biases the die half in an opening direction, and - has a pivot bolt accommodation which is open on one side, - is guided displaceably in the direction of a crimping axis on the pliers head frame, - is supported by the spring device on the pliers head frame in such a way that the spring device biases the die half in an opening direction, and - has a pivot bolt accommodation which is open on one side, e) the pulling bars (16, 17) being connected to the pliers head frame via coupling devices, the pivot bolt being arranged in the pivot bolt accommodation, a pivoting of the hand levers (2, 3) causing a relative movement of the die half with respect to the pliers head frame, and a movement of the die half and a pivoting of the hand levers (2, 3) taking place in a pliers head plane, characterized in that f) at least one coupling device, preferably both coupling devices, has/have a coupling recess (45; 46) open on one side and a coupling element (22; 23), wherein the coupling between the coupling recess (45; 46) and the coupling element (22; 23) fa) can be established by means of a pivoting movement of the pulling bar (16, 17) in the pliers head plane and by means of an entry of the coupling element (22; 23) into the coupling recess (45; 46) brought about by this pivoting movement, and fb) is secured by the spring device. fa) can be established by means of a pivoting movement of the pulling bar (16, 17) in the pliers head plane and by means of an entry of the coupling element (22; 23) into the coupling recess (45; 46) brought about by this pivoting movement, and fb) is secured by the spring device.