*
Distance(mm)	Rockwell Scale: C
    0.00	   37.90
    1.59	   57.20
    3.17	   55.40
    4.76	   53.60
    6.35	   53.50
    7.94	   53.80
    9.52	   53.90
   11.11	   54.20
   12.70	   53.10
   14.29	   52.90
   15.87	   51.00
   17.46	   46.70
   19.05	   42.70
   20.64	   40.80
   22.22	   37.60
   23.81	   34.70
   25.40	   33.00
   31.75	   32.50
   38.10	   31.90
   44.45	   31.00
   50.80	   34.00
   63.50	   33.70
   71.44	   32.40