Thats part of what makes this so hard is these two steels are both very good and very close when it comes to strength and toughness. <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />

If you watch Noss's destruction tests - it is always the hardest steels that crack, break or shatter. That's because with hardness you introduce more brittleness.

This thread makes my head hurt too and my fingers. <img src="/ubbthreads/images/graemlins/laugh.gif" alt="" />