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tapping drill size

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KWIL21/01/2011 18:59:29
3681 forum posts
70 photos
All this Data is available handily on laminated Workshop Wallchart from Myford, pick one up at a show for a couple of £.
David Clark 121/01/2011 20:58:39
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Hi There
We reprinted all of these in Model Engineers' Workshop about 2 1/2 years ago.
regards David
Dougie Swan23/01/2011 15:44:01
269 forum posts
73 photos
Hi David,
In may 2009 you said that the ME wallchart would be uploaded to this site so that it could be printed off, I havent been able to find it so far.
If they were repinted in MEW that dosent help those of us who only get ME
Regards
Dougie
David Clark 123/01/2011 16:10:19
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3357 forum posts
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Hi Dougie
Not posibble at the moment as it is A2 size.
The amount of people with an A2 size printer makes this unviable.
I will look at putting it into ME instead of free palns.
Would need photocopying to go in the workshop I would expect.
regards David
 
 
Richard Parsons23/01/2011 16:39:01
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645 forum posts
33 photos
There is an old rule of thumb for ME taps for 40tpi it is 1/32" below the nominal tap size and for the 32 tpi series it is 3/64" below the tap size. Thies were formulated befor BSI and the unastyness with Adolph and perhaps before the unpleasentness with Kaiser Bill. In the days when metric was just a glint in the eyes of the powers that be.

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