Turning

Subject:
Re: thread cutting with jigs

John C Lucas
I try to use ery few threads although i dont always. You get tired of unscrewing the lid if you have a long set of threads. According to engineering specs you only need 3 threads to get full strength. We definitely dont need strength for our box lids.

I do use scrap threaded pieces to help with some lids or finials. They work so much better than jam chucks.

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