Functioning - The DHK is set in push-through installation using a hammer. - The plate size of the insulation support is to be selected in line with the compressive strength of the insulating material: DHK 45 for pressure-resistant DHK 90 for soft insulating materials. - The expansion of the ribs in the drill hole gives the DHK an ideal contact pressure. - Temperature range when installed: -40°C to +80°C.