*
Distance(mm)	Rockwell Scale: C
    0.00	   58.20
    1.59	   50.70
    3.17	   57.40
    4.76	   58.30
    6.35	   58.30
    7.94	   57.30
    9.52	   57.00
   11.11	   56.90
   12.70	   52.10
   14.29	   55.50
   15.87	   54.50
   17.46	   52.50
   19.05	   49.90
   20.64	   47.80
   22.22	   45.70
   23.81	   44.40
   25.40	   43.40
   31.75	   38.90
   38.10	   35.20
   44.45	   33.80
   50.80	   32.20
   63.50	   29.80
   74.61	   29.40