Abstract: A blade-carrier tool of the type forming a handle for holding in the hand, and provided at its front end with a removable blade which is held in position by a clamping mechanism including two jaws between which the blade may be engaged. The jaws of the clamping mechanism are connected to respective levers serving to control the clamping mechanism. The levers are suitable for occupying an open first position in which the jaws are moved apart from each other, and a closed second position which is spontaneously locked under the action of declutchable locking means, in which position the jaws bear against respective opposite sides of the blade and hold it securely in position.