... :Blade Linear guideway,shear blade,circular knives and spacers,cold and hot cutting linear blade,Square profiled cutting ... ,6CrW2Si,Cr12MoV,9SiCr,GCr15,H13,H13K,HMB and HMK 3.Features:High intensity,high hardness,high ... resistance. 4.Blade Incision:Smooth without burr and long working life5. working ability: 1)Length ... technical index reaches the international standard round metal cutting blade