Redding full length die - Being used the finest alloy steels obtainable - Machined on Hardinge Super-Precision lathes capable of holding the tightest tolerances in the industry - To maintain tolerances and guarantee that your dies will last a lifetime, all Redding dies are heat treated in atmospherically controlled furnaces - The dies are hand polished for smooth, flawless functioning, go through final inspection, and are ultrasonically cleaned and packaged.