*
Distance(mm)	Rockwell Scale: C
    0.00	   51.87
    1.59	   57.70
    3.17	   56.40
    4.76	   57.00
    6.35	   57.70
    7.94	   56.30
    9.52	   55.30
   11.11	   55.10
   12.70	   50.80
   14.29	   48.30
   15.87	   46.80
   17.46	   47.60
   19.05	   46.70
   20.64	   42.90
   22.22	   39.80
   23.81	   40.90
   25.40	   40.70
   31.75	   39.90
   38.10	   34.20
   44.45	   34.50
   50.80	   33.90
   63.50	   31.00
   73.02	   28.30