*
Distance(mm)	Rockwell Scale: C
    0.00	   34.80
    1.59	   40.30
    3.17	   56.40
    4.76	   54.30
    6.35	   53.40
    7.94	   54.60
    9.52	   58.00
   11.11	   58.40
   12.70	   58.70
   14.29	   59.00
   15.87	   59.40
   17.46	   57.90
   19.05	   58.40
   20.64	   58.50
   22.22	   58.80
   23.81	   60.00
   25.40	   59.90
   31.75	   50.90
   38.10	   58.20
   44.45	   51.30
   50.80	   39.40
   63.50	   41.80
   74.61	   42.10