*
Distance(mm)	Rockwell Scale: C
    0.00	   55.50
    1.59	   52.20
    3.17	   53.00
    4.76	   50.80
    6.35	   51.30
    7.94	   54.60
    9.52	   55.70
   11.11	   55.20
   12.70	   55.20
   14.29	   52.20
   15.87	   51.40
   17.46	   49.20
   19.05	   47.50
   20.64	   44.20
   22.22	   40.40
   23.81	   37.50
   25.40	   35.80
   31.75	   35.80
   38.10	   32.60
   44.45	   28.30
   50.80	   24.70
   63.50	   26.90
   74.61	    8.70