*
Distance(mm)	Rockwell Scale: C
    0.00	   54.10
    1.59	   56.90
    3.17	   56.30
    4.76	   54.80
    6.35	   53.40
    7.94	   52.30
    9.52	   51.60
   11.11	   51.30
   12.70	   52.70
   14.29	   53.20
   15.87	   53.10
   17.46	   51.30
   19.05	   48.00
   20.64	   48.00
   22.22	   47.30
   23.81	   46.20
   25.40	   44.90
   31.75	   37.80
   38.10	   37.80
   44.45	   36.30
   50.80	   36.10
   63.50	   32.30
   73.02	   29.80