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Thread: What size wire to use for 4-40 threading die
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Old 07-19-2002 | 10:09 PM
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Default What size wire to use for 4-40 threading die
Yeap, those are the ones I personally feel are weak, or at least they use to be many years ago. I suggest you give them a little bending test and see if they bend easily where the threads meet the coupler.
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