It is a nickel alloy impact steel with high toughness. It is used for cutting and
forming thick sheets due to its excellent toughness. Its hardenability and
polishability are also high. The hardness of use is between 52 - 54 Rc.
1.2842 tool steel (90MnCrV8) is a medium alloy cold work steel containing approximately 1% carbon.
It has a high hardening ability towards the core. It is dimensionally stable and has good compressive strength.