* Distance(mm) Rockwell Scale: C 0.00 49.50 1.59 35.00 3.17 56.90 4.76 57.20 6.35 56.40 7.94 56.00 9.52 51.40 11.11 53.10 12.70 53.10 14.29 52.50 15.87 52.20 17.46 50.80 19.05 48.20 20.64 46.40 22.22 44.20 23.81 41.70 25.40 39.50 31.75 36.90 38.10 33.20 44.45 32.60 50.80 32.00 63.50 24.40 76.20 10.10