<p>The drill chuck includes an input shaft having a cavity, a chuck actuating shaft and a chuck actuating screw. The chuck actuating shaft is received in the cavity and is rotatable about a chuck axis. The chuck actuating shaft has a threaded aperture. The chuck actuating screw has a threaded portion threadably engaged to the aperture. The jaws are received in the cavity and engage the input shaft. Rotation of the chuck actuating shaft relative to the chuck actuating screw translates the jaws so that the jaws converge toward or diverge from the chuck axis. The chuck further includes a device coupled to at least one of the chuck actuating screw, the chuck actuating shaft and the input shaft for limiting elastic elongation of the chuck actuating screw in an axial direction when the jaws are fully opened.</p>
