*
Distance(mm)	Rockwell Scale: C
    0.00	   39.42
    1.59	   57.70
    3.17	   53.30
    4.76	   54.40
    6.35	   53.00
    7.94	   52.00
    9.52	   52.80
   11.11	   53.50
   12.70	   54.00
   14.29	   53.90
   15.87	   54.10
   17.46	   53.10
   19.05	   53.60
   20.64	   54.30
   22.22	   55.20
   23.81	   55.30
   25.40	   54.80
   31.75	   48.10
   38.10	   46.10
   44.45	   41.60
   50.80	   39.40
   63.50	   25.50
   73.02	   29.70