The invention relates to an optical disk drive, and more particularly, to a holder for disk drives having an improved chuck structure for seating a disk. Said device comprises a rotationally mounted tool, wherein the fixing screw andor the fixing groove is maintained in a manner that prevents it from rotating and in an axially fixed manner and wherein the head of the fixing screw andor the fixing groove is maintained at a distance in relation to the first component as long as both components are joined together. Insert halves which in each case comprise two fixed plates having engaging edges for engaging one of the parts to be pressed and an axially moveable press plate having an engaging edge for engaging the second part to be pressed can be inserted into the housing.