*
Distance(mm)	Rockwell Scale: C
    0.00	   33.35
    1.59	   52.00
    3.17	   57.60
    4.76	   57.20
    6.35	   54.40
    7.94	   53.80
    9.52	   54.20
   11.11	   54.40
   12.70	   54.20
   14.29	   54.60
   15.87	   54.00
   17.46	   52.70
   19.05	   51.00
   20.64	   58.40
   22.22	   60.00
   23.81	   59.70
   25.40	   59.70
   31.75	   54.50
   38.10	   45.00
   44.45	   45.10
   50.80	   42.30
   63.50	   40.80
   71.44	   35.10