*
Distance(mm)	Rockwell Scale: C
    0.00	   40.30
    1.59	   42.80
    3.17	   49.60
    4.76	   48.40
    6.35	   49.20
    7.94	   49.50
    9.52	   49.70
   11.11	   48.40
   12.70	   49.50
   14.29	   50.20
   15.87	   50.00
   17.46	   51.00
   19.05	   50.00
   20.64	   49.60
   22.22	   47.80
   23.81	   46.90
   25.40	   44.30
   31.75	   36.90
   38.10	   36.40
   44.45	   35.10
   50.80	   32.10
   63.50	   33.00
   73.02	   22.20