*
Distance(mm)	Rockwell Scale: C
    0.00	   37.20
    1.59	   53.20
    3.17	   56.50
    4.76	   58.30
    6.35	   56.60
    7.94	   55.30
    9.52	   55.80
   11.11	   56.80
   12.70	   56.30
   14.29	   56.30
   15.87	   56.10
   17.46	   55.00
   19.05	   54.10
   20.64	   52.40
   22.22	   50.50
   23.81	   48.50
   25.40	   47.40
   31.75	   43.60
   38.10	   39.00
   44.45	   33.10
   50.80	   32.70
   63.50	   34.50
   74.61	   28.40