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That tap is supplied specifically from schmidt for their feeds to ensure that manufacture operation is correct t every time.

I believe what Phil is doing is having the taps manufactured to suit thread and pitch only.

Not the most accurate way of precision engineering tho Ed.:nonono:

The 3rd tap is not aggressive, it's not designed to do what a first tap is designed to do. And that is to create the thread slowly and progressively.

but agree if you use the bottoming tap as the main tap you are at risk of break out, cracking and the like. . but it can be done with a bottoming tap in one go. But it's not for the faint hearted in my opinion.

I agree with what ZT said, that is all they supply, but schmidt use ebonite for their nib feeds, which I it's self is a much safer material to tap and doesn't suffer with the break out as it's got a little flex and not a ridged or brittel material. Correct me if I'm wrong..

<blockquote data-quote="silver" data-source="post: 173357" data-attributes="member: 165">That tap is supplied specifically from schmidt for their feeds to ensure that manufacture operation is correct t every time.I believe what Phil is doing is having the taps manufactured to suit thread and pitch only.Not the most accurate way of precision engineering tho Ed.:nonono:The 3rd tap is not aggressive,&nbsp; it&#039;s not designed to do what a first tap is designed to do. And that is to create the thread slowly and progressively.but agree if you use the bottoming tap as the main tap you are at risk of break out, cracking and the like. .<img src="http://www.penturners.co.uk/images/smilies/18/thumbs.gif"&nbsp; class="smilie" loading="lazy" alt=":thumbs:" title="Thumbs&nbsp; &nbsp; :thumbs:" data-shortname=":thumbs:" /> but it can be done with a bottoming tap in one go.&nbsp; But it&#039;s not for the faint hearted in my opinion.I agree with what ZT said, that is all they supply, but schmidt use ebonite for their nib feeds, which I&nbsp; it&#039;s self is a much safer material to tap and doesn&#039;t suffer with the break out as it&#039;s got a little flex and not a ridged or brittel material. Correct me if I&#039;m wrong..<img src="http://www.penturners.co.uk/images/smilies/18/rolling.gif"&nbsp; class="smilie" loading="lazy" alt=":rolling:" title="Rolling&nbsp; &nbsp; :rolling:" data-shortname=":rolling:" /></blockquote>

[QUOTE="silver, post: 173357, member: 165"] That tap is supplied specifically from schmidt for their feeds to ensure that manufacture operation is correct t every time. I believe what Phil is doing is having the taps manufactured to suit thread and pitch only. Not the most accurate way of precision engineering tho Ed.:nonono: The 3rd tap is not aggressive, it's not designed to do what a first tap is designed to do. And that is to create the thread slowly and progressively. but agree if you use the bottoming tap as the main tap you are at risk of break out, cracking and the like. .:thumbs: but it can be done with a bottoming tap in one go. But it's not for the faint hearted in my opinion. I agree with what ZT said, that is all they supply, but schmidt use ebonite for their nib feeds, which I it's self is a much safer material to tap and doesn't suffer with the break out as it's got a little flex and not a ridged or brittel material. Correct me if I'm wrong..:rolling: [/QUOTE]

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