Technical reference image. The quote takes into account your exact standard, size and drawing.
The hex punch is the tool that opens the internal hexagonal housing (Allen socket) in the screw head, typical of cylindrical-head screws (DIN 912 / ISO 4762), countersunk and headless. It penetrates the upset material forming the six faces of the socket with a sharp edge and constant depth — a condition for the key to transmit torque without stripping the socket.
Because it works under extremely high contact pressure at the corners of the hexagon, it is made of fine-grain carbide, with corner radii and relief angles calculated for maximum service life. KS supplies the punch in the socket size (width across flats) per DIN/ISO and replaces the wear tooling, maintaining the tolerance that ensures the wrench fit.
