Dies that are inherited from another die caster are sometimes very old. Sometimes there is no history to show what prior maintenance was done to the tool.  MetaLL ifeÒ verifies the relative surface hardness of dies and then gives visual evidence after processing that verifies where and if the dies has been nitrided, welded, coated, or improperly quenched when heat treat.  In addition each insert over 50lbs. is surface hardness checked prior stress tempering and before processing, using an EquoTip velocity hardness tester to ensure consistency.

If you have a porous or bad weld, it will usually show up after we process your tooling.  The EquoTip is unique in that it leaves no dimpling on the die surface so measurements can be taken in the most meaningful place - the casting wet metal areas.  It is not as accurate as a dimple tester, but it confirms relative hardness by velocity bounce back readings and it is totally portable.