Clamping jaw and chuck

A clamping jaw for a chuck, the clamping jaw comprising:

• a jaw body on which a jaw step is formed, which jaw step has a step head having a first longitudinal side, a second longitudinal side opposite the first longitudinal side, a front face disposed between the first longitudinal side and the second longitudinal side, a first threaded bore formed in the first longitudinal side, a second threaded bore formed in the second longitudinal side and a sensor disposed at the front face,
• a clamping insert formed from a base leg, a first fastening leg projecting away from the base leg and a second fastening leg spaced apart from the first fastening leg and projecting away from the base leg, wherein a first passage opening is formed in the first fastening leg and a second passage opening is formed in the second fastening leg,
• wherein the jaw step is configured to hold the clamping insert with the base leg of the clamping insert resting against the front face of the step head,
• a first fastening screw having a first screw head held in the first passage opening formed in the first fastening leg of the clamping insert, which first fastening leg is adjacent to the first longitudinal side of the step head, and
• a second fastening screw having a second screw head held in the second passage opening formed in the second fastening leg of the clamping insert, which second fastening leg is adjacent to the second longitudinal side of the step head,
• wherein a first longitudinal axis of the first threaded bore is offset from a first longitudinal axis of the first passage opening and a second longitudinal axis of the second threaded bore is offset from a second longitudinal axis of the second passage opening, as a result of the base leg of the clamping insert resting against the front face of the step, to such an extent that no force is absorbed by the first screw head or the second screw head as a clamping force is applied.