*
Distance(mm)	Rockwell Scale: C
    0.00	   31.80
    1.59	   54.60
    3.17	   51.10
    4.76	   43.80
    6.35	   38.80
    7.94	   46.30
    9.52	   40.60
   11.11	   43.10
   12.70	   37.00
   14.29	   40.50
   15.87	   43.40
   17.46	   43.60
   19.05	   45.50
   20.64	   45.20
   22.22	   45.00
   23.81	   40.70
   25.40	   41.50
   31.75	   41.10
   38.10	   31.10
   44.45	   35.30
   50.80	   31.90
   63.50	   32.00
   74.61	   21.40