Clamping chuck with inclined slides

A clamping chuck comprising a body accommodating at least one slideably mounted spindle in a housing in the body, said housing being inclined relative to the axis (xx′) of the chuck and exiting through the front face of the latter, the spindle movement being driven by the movement of a piston along the chuck axis (xx′) and said spindle being equipped at one end with a groove into which slides a drive section of the piston, the latter and said groove being perpendicular to the axis (uu′) of said spindle, characterized in that:

• the second end of the spindle comprises a notch exiting into the groove such that, when positioning the spindle from the front face of the chuck, it allows the spindle to move along the drive section and touch the latter and enable its groove to be positioned facing said drive section, such that such that after one rotation of the spindle around its axis (uu′), the groove engages with the drive section.