*
Distance(mm)	Rockwell Scale: C
    0.00	   47.73
    1.59	   53.50
    3.17	   50.40
    4.76	   53.80
    6.35	   56.80
    7.94	   56.70
    9.52	   55.60
   11.11	   54.70
   12.70	   52.80
   14.29	   49.90
   15.87	   49.40
   17.46	   48.10
   19.05	   48.70
   20.64	   46.70
   22.22	   45.10
   23.81	   41.80
   25.40	   39.50
   31.75	   34.50
   38.10	   30.00
   44.45	   25.30
   50.80	   21.30
   63.50	   18.40
   74.61	   19.00