Power tapping a part - GIF

Power tapping a part.

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Previously:

https://www.homemadetools.net/forum/...857#post223775
https://www.homemadetools.net/forum/...200#post188222
https://www.homemadetools.net/forum/...002#post176037
https://www.homemadetools.net/forum/...812#post179068
https://www.homemadetools.net/forum/...870#post223811

That is probably cast iron. But still dry tapping? And at production speeds no less. Guess they are not concerned about tool wear.

Quote:

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Originally Posted by Frank S

That is probably cast iron. But still dry tapping? And at production speeds no less. Guess they are not concerned about tool wear.

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It is not completely dry, that smoke has to come from somewhere. Often for clarity, in machining videos, the coolant is turned off. In any case I would always tap grey cast iron dry, maybe a cooling air blast but dry.