*
Distance(mm)	Rockwell Scale: C
    0.00	   77.50
    1.59	   38.30
    3.17	   48.20
    4.76	   58.90
    6.35	   57.30
    7.94	   57.30
    9.52	   57.60
   11.11	   56.80
   12.70	   56.40
   14.29	   55.00
   15.87	   53.90
   17.46	   52.70
   19.05	   55.00
   20.64	   53.60
   22.22	   50.60
   23.81	   48.40
   25.40	   46.40
   31.75	   40.90
   38.10	   37.80
   44.45	   35.20
   50.80	   34.60
   63.50	   33.30
   73.02	   32.40