*
Distance(mm)	Rockwell Scale: C
    0.00	   59.30
    1.59	   55.30
    3.17	   57.10
    4.76	   57.00
    6.35	   57.20
    7.94	   57.10
    9.52	   56.30
   11.11	   57.60
   12.70	   57.90
   14.29	   57.60
   15.87	   55.70
   17.46	   55.10
   19.05	   54.30
   20.64	   52.90
   22.22	   53.60
   23.81	   54.90
   25.40	   55.10
   31.75	   54.00
   38.10	   50.20
   44.45	   51.00
   50.80	   45.90
   63.50	   44.70
   72.23	   47.60