*
Distance(mm)	Rockwell Scale: C
    0.00	   45.70
    1.59	   53.80
    3.17	   57.30
    4.76	   58.00
    6.35	   58.00
    7.94	   64.20
    9.52	   57.60
   11.11	   56.70
   12.70	   55.80
   14.29	   55.80
   15.87	   55.40
   17.46	   54.60
   19.05	   52.80
   20.64	   51.00
   22.22	   49.80
   23.81	   48.00
   25.40	   46.30
   31.75	   41.10
   38.10	   37.50
   44.45	   36.60
   50.80	   34.40
   63.50	   32.70
   73.02	   25.60