Tru-Therm heats vertically hung toolholder and allows tool to drop easily into retainer, eliminating operator contact. Copper induction coils in 4 sizes changeout in 5 sec without need to shut down system power. Touchscreen facilitates programming of holder size and material. Built-in cooler uses closed-loop circulation to draw heat from tool. Machine accepts holder from 3/16-2 in. dia.