*
Distance(mm)	Rockwell Scale: C
    0.00	   46.10
    1.59	   58.70
    3.17	   52.90
    4.76	   54.30
    6.35	   51.50
    7.94	   49.60
    9.52	   53.90
   11.11	   54.80
   12.70	   55.10
   14.29	   55.30
   15.87	   53.80
   17.46	   57.40
   19.05	   54.50
   20.64	   51.10
   22.22	   50.50
   23.81	   51.70
   25.40	   50.80
   31.75	   47.90
   38.10	   46.40
   44.45	   51.20
   50.80	   55.60
   63.50	   43.10
   73.02	   45.90