*
Distance(mm)	Rockwell Scale: C
    0.00	   50.60
    1.59	   52.20
    3.17	   53.40
    4.76	   45.00
    6.35	   27.00
    7.94	   24.60
    9.52	   24.50
   11.11	   23.90
   12.70	   24.30
   14.29	   26.20
   15.87	   25.00
   17.46	   23.80
   19.05	   23.20
   20.64	   22.20
   22.22	   21.20
   23.81	   19.30
   25.40	   18.70
   31.75	   18.30
   38.10	   16.40
   44.45	   12.30
   50.80	   12.40
   63.50	   10.70
   68.26	    7.80