High-value tooling such as toolholders, workholding and turret press tooling takes on an attractive, protective black oxide finish when finished with the TRU TEMP low-temperature, nonpolluting black-oxide system from Birchwood Technologies. Extremely durable, the TRU TEMP process provides a satin black magnetite coating, 20 millionths thick (0.54 micron) with no effect on component material hardness or tensile strength.