Union copper tube to 1/4-40 MTP ?

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10 Wheeler Rob
Posts: 1448
Joined: Tue Mar 21, 2006 2:44 pm
Location: East Hartford, CT

Re: Union copper tube to 1/4-40 MTP ?

Post by 10 Wheeler Rob » Thu May 10, 2018 8:42 pm

Not just an internal ACME thread it is also left hand. First thing I ground a cutter for and machined after I purchased my 1927 9" South Bend. Made an aluminum practice one and then a brass one. Few months later a shop teacher friend gave me some when the school cleared out its metal shop.

Very time consuming to grind the single point cutter.

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