[Shop-talk] Milling machine index head plates

[Pat Horne]

I came across a couple index plates I am trying to identify. 

7-1/4” diameter 
1” center hole
4 flat head mounting holes on 1-13/16” diameter circle
About 7/16” thick

One marked “A”
Has patterns for 15, 16, 17, 18, 19, 20, 21, 23 & 27 holes one one side & 26,31, 33, 37, 39, 41, 43, 47 & 49 on the other. 

The other is marked “B”
Has patterns for 57, 61, 67, 73, 79, 83, 91, 96, 97 & a99 on one side & 51, 53, 59, 63, 69, 71, 77, 81, 87, 89 & 93 on the other. 

I don’t have a mill so I hope to identify them so I can sell them. 

Thanks. 

Peace,
Pay




Pat Horne 
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