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Al Babin
 
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Default Boring head setup?

Boring on the mill is a lot like turning or boring on the lathe. You need
adequate rake and get the best finish "backing out" of the hole as you cut.
Carbide tipped bars (brazed or insert) are the way to go.
"Machining Fundementals" is a great book and lays it all out so even I
understand it.
My English is improving too!
Lord Alfred Babin