Must be 1060 high carbon sprung steel, with a rock well hardness of 53, rounded cutting edges and a blade tip approx size of a 10p piece. must be of a consistent quality as have have samples that were perfect but on full order have been sent a much lower grade. these items must be ready for full contact use against blade on blade.we are directly buyer,if you have,please send details to us.Wishing you successful business with us.thank you！！ Show More