Support BladeForums! Paid memberships don't see ads! Hello Bladeforum. I am new to the forum and wanted to get a bit of advice. I am starting a throwing knife activity here in the UK. I have been using CS knives, but not a fan of the 1055 steel. I am going to have my own made using 1075 steel lazer profile cut, then hardened using a couple of local companies. My main question I have been asked by the company who is doing to hardening, what hardness would I like? Any advice.