*
Distance(mm)	Rockwell Scale: C
    0.00	   42.90
    1.59	   57.90
    3.17	   55.70
    4.76	   57.10
    6.35	   57.50
    7.94	   58.70
    9.52	   59.70
   11.11	   55.30
   12.70	   56.00
   14.29	   54.60
   15.87	   52.00
   17.46	   50.80
   19.05	   52.70
   20.64	   48.80
   22.22	   48.60
   23.81	   46.00
   25.40	   47.90
   31.75	   40.20
   38.10	   35.30
   44.45	   33.80
   50.80	   25.60
   63.50	   13.80
   73.02	   22.90