CPM-3V has got a great reputation as a tough steel but it's never really been able to get to high hardnesses and people have always wanted simular properties but with a higher hardness. The soloution is CPM-4V! It is able to get to 64 Rockwell, has better wear resistance while still having good toughness. For custom makers we will be keeping CPM-4V initally at 3.5mm thick but we will be expanding this over the coming months.