This useful chart shows imperial and metric equivalents, as well as offering suggested tapping drill sizes for a wide range of threads.
Download links:
ChartA
ChartB
ChartC
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Many thanks to the ‘Man Who Can Scan’ – Nick Farr – for sending us good quality scans of his copy (we don’t have an electronic version on file). Nick offers the following advice:
Charts A and B are the full chart in two sheets of the same size in portrait which ideally would best be printed onto A3+ paper, which would give a chart the same size as the original, that could be made by trimming and sticking them together. Chart C is a landscape of the full chart which could be printed out on an A2 or larger printer, to give a one piece size of the original. I can’t say the sizes would be exact, but they should be close, I have printed all three on A3 paper, but of course they are smaller but the landscape one is still a readable size for close reading.
The charts are also easily read as PDFs by zooming in and may be usable printed onto two A4 sheets if you have good enough eyesight!
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Hi,
I'm the editor of Model Engineer & Workshop magazine and before that the editor of MEW from 2014, also one of the website admins.
I'm a model engineer, and in the past I have written for ME and MEW, but I won't claim any great stock of expertise, just plenty of enthusiasm. Before becoming editor, I used to post on this forum as Stub Mandrel (and may occasionally still do so).
If you would like to find out more about me, my personal website is <a href="http://www.stubmandrel.co.uk/">www.stubmandrel.co.uk/</a> and I have an author page on Amazon at <a href="https://www.amazon.co.uk/Neil-M-Wyatt/e/B01FK687I0/ref=ntt_dp_epwbk_0">amazon.co.uk/Neil-M-Wyatt/</a>
Feel free to send me a 'pm' (message member) but these are a bit slow and clumsy, so if you would like to get in touch with me by email use <a href="mailto:
[email protected]">
[email protected]</a>
I'm always glad to hear your views on the magazine, and particularly keen to encourage new contributors to 'have a go', so let me know if you have any ideas for articles.
I hope to hear from you soon.
Neil
