*
Distance(mm)	Rockwell Scale: C
    0.00	   47.02
    1.59	   57.70
    3.17	   56.30
    4.76	   57.40
    6.35	   57.30
    7.94	   56.50
    9.52	   56.10
   11.11	   56.80
   12.70	   56.00
   14.29	   58.00
   15.87	   58.30
   17.46	   58.30
   19.05	   57.70
   20.64	   57.10
   22.22	   57.30
   23.81	   56.60
   25.40	   56.20
   31.75	   55.90
   38.10	   56.70
   44.45	   56.10
   50.80	   53.60
   63.50	   56.10
   73.02	   54.40