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Old 01-20-2020, 05:00 AM   #6
Synchro909
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Join Date: Jun 2014
Location: Melbourne, Australia
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Default Re: Cap and Comp Jet Helicoil repair

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Are you sure it is 5mm X 0.75 pitch? That is an odd thread. Metric coarse is 5 X 0.8 mm and metric fine is 5 X 0.5mm. A pitch of 0.75mm is very close to 34 tpi, again odd!
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