* Distance(mm) Rockwell Scale: C 0.00 47.80 1.59 51.20 3.17 53.80 4.76 57.40 6.35 57.10 7.94 58.10 9.52 58.10 11.11 57.10 12.70 56.90 14.29 56.80 15.87 56.40 17.46 56.30 19.05 57.20 20.64 58.50 22.22 58.80 23.81 57.60 25.40 56.60 31.75 57.10 38.10 55.10 44.45 48.30 50.80 47.20 63.50 47.30 76.20 32.40