*
Distance(mm)	Rockwell Scale: C
    0.00	   39.60
    1.59	   43.30
    3.17	   36.10
    4.76	   32.10
    6.35	   41.80
    7.94	   39.90
    9.52	   37.60
   11.11	   34.20
   12.70	   35.40
   14.29	   34.80
   15.87	   34.10
   17.46	   33.20
   19.05	   34.00
   20.64	   31.40
   22.22	   29.40
   23.81	   29.20
   25.40	   28.50
   31.75	   20.30
   38.10	   16.60
   44.45	   17.30
   50.80	   21.10
   63.50	   12.20
   71.44	    7.80