The workpiece is pressed onto the support surface by the pull-down effect. For T-slots 14, 16 and 18 mm and for direct mounting on the fixture plate. Eccentric tightening screw M12 for clamping force 18kN. Body and clamping disc case-hardened.Serrated clamping disc for raw parts and smooth edge for processed parts. The disc adapts to the inclination of the part.