Durable Technologies can customize any of our numbering head packages with optional hot stamping equipment and proportional temperature control package. The hot stamping equipment provides a heating element in the wheel shaft and additional design features that are not used during cold stamping heads. When the optional proportional temperature control is used, which is highly recommended, a uniform stamping temperature can be maintained. Flat face characters are typically used when in these applications in order to facilitate the transfer of ink from a hot stamping ribbon to the substrate that you're printing on.