ME tapping dril sizes

[JC Uknz 1Participant @jcuknz1]

[JC Uknz 1Participant @jcuknz1]

I am getting a ME 1/4 x 40 taps so in the first place need to know the tapping drill size for them but also wonder about a link to a site giving all ME tapping sizes. Hope you can help

[Thor 🇳🇴Participant @thor]

Have a look at Harold Hall's website.

Regards

Thor

[JC Uknz 1Participant @jcuknz1]

Thankyou Thor for that quick reply … you have given me a link to a very valuable site

[TerrydParticipant @terryd72465]

Hi (sorry to be impersonal but I don't have a name to address you properly),

It would be worth installing a copy of Alan Munday's Model Engineers Utilities on your PC. It has a lot of extremely useful data (including data for most screw threads you are likely to need). I cannot recommend it highly enough. best of all it is a free download from here.

Best regards

Terry

Edited By Terryd on 14/01/2013 07:27:06

[HomeUseParticipant @homeuse]

Hi Terryd – I had a copy of the Utilities on my Old PC – Now I have been updated to A MAC by my more modern offspring it wont download – !!!!! Modern Technolagy !!!!

[TerrydParticipant @terryd72465]

Hi H,

( a proper name would be nice ) there are programs which allow MACs to emulate Windows machines, I'm not sure if they will work for Alan Munday's utilities but it may be worth a try.

Terry

[ZiggarParticipant @ziggar]

asking a Mac user to install anything MS on their machine is like asking a vegatarian to chomp down on a chicken sandwich …..

probably the main reasoon for swapping from a PC to a Mac is to get away from MS

[ZiggarParticipant @ziggar]

and to asnswer the opening question :–

there are _many_ websites and webpages dedicated to giving you the needed tapping sizes if you use Google to search for them

[HomeUseParticipant @homeuse]

All is not lost as the OLD PC is still in use – Still have to use it for TurboCad – MAC version is like running up the down esculator – That is unless any Mac user out there can enlighten me.???

[TerrydParticipant @terryd72465]

Posted by Ziggar on 14/01/2013 10:58:56:

and to asnswer the opening question :–

there are _many_ websites and webpages dedicated to giving you the needed tapping sizes if you use Google to search for them

Hi Z,

With Mr Mundays Utilities it is possible to calculate gear ratios, spring sizes, pcd,  sine bar calcs, sheet metal bending data, compare drill sizes, cutting feeds and speeds, as well as easily get thread data, and very much more, all with a couple of clicks in one place with no need to Google anything.  perhaps I'm just lazy

For the record, I am a MAC user (+iPhone, iPad, etc) but when I need to run programs that are only available for Windows I am quite willing to use an emulator – which is definitely not the same as using Windows.

Best regards,

Terry

Edited By Terryd on 14/01/2013 14:16:49

[Russell EberhardtParticipant @russelleberhardt48058]

Install "Wine" on your MAC. It will enable you to run most Windoze programes directly. Failing that you could install VirtualBox which will enable you to actually install Windoze on an emulated virtual computer.

Works fine here on my Linux computers.

Russell.

[Michael GilliganParticipant @michaelgilligan61133]

Posted by HomeUse on 14/01/2013 12:06:50:

All is not lost as the OLD PC is still in use – Still have to use it for TurboCad – MAC version is like running up the down esculator – That is unless any Mac user out there can enlighten me.???

I suggest you leave TurboCad where it is, and install DraftSight on the Mac.

MichaelG.

[HomeUseParticipant @homeuse]

Hi M G – ? Is DraftSight any good for Architectural Drawings

[Michael GilliganParticipant @michaelgilligan61133]

Posted by HomeUse on 14/01/2013 16:00:33:

Hi M G – ? Is DraftSight any good for Architectural Drawings

It's only 2.5D … but is remarkably like a legacy version of AutoCad. Definitely worth a try at the price

If you need full 3D presentation; have a look at SketchUp

MichaelG.

[thomas oliver 2Participant @thomasoliver2]

My reference handbooks show that since the thread size of ME x40tpi is constant, the tapping drill will in all cases be 1/32in less than the nominal size, and this will give 97% engagement. TomOl

[Ian SugdenParticipant @iansugden63787]

Posted by Terryd on 14/01/2013 07:26:29:

Hi (sorry to be impersonal but I don't have a name to address you properly),

It would be worth installing a copy of Alan Munday's Model Engineers Utilities on your PC. It has a lot of extremely useful data (including data for most screw threads you are likely to need). I cannot recommend it highly enough. best of all it is a free download from here.

Best regards

Terry

Edited By Terryd on 14/01/2013 07:27:06

Anyone got this program to run on windows7?

All comes up with black shaded squares

[SteambuffParticipant @steambuff]

Runs fine on Windows 7 here ….. remember to install as administrator

Dave

[Roderick JenkinsParticipant @roderickjenkins93242]

Posted by thomas oliver 2 on 16/01/2013 19:40:01:

My reference handbooks show that since the thread size of ME x40tpi is constant, the tapping drill will in all cases be 1/32in less than the nominal size, and this will give 97% engagement. TomOl

97% engagement is asking for broken tap! 5.7mm gives 80% or 5.8mm 65% (from Tubal Cain's "Drills Taps and Dies"

Rod

[Ian SugdenParticipant @iansugden63787]

Posted by Steambuff on 23/01/2013 20:30:29:

Runs fine on Windows 7 here ….. remember to install as administrator

Dave

It only unzips the file and not installs

[SteambuffParticipant @steambuff]

Ian,

Unzip the file (as administrator) into any folder you wish ….

Once it it has unzipped it is ready to use … using Windows Explorer, navigate to the folder you unzipped the files into …. Then double click on the ModelEngineersUtilities.exe file.

If you want an icon on your desktop then right-click, select 'Copy' and then hover over your desktop, right-click and 'Paste short-cut'

Dave

[Ian SugdenParticipant @iansugden63787]

I have done that Dave

but the background is black and I cant see half the text

[mechman48Participant @mechman48]

Tried to download; running Vista…'CRASHED MY PC' !!! B****CKS, ..will keep my Newnes Engineers pocket book, Presto drilling & tapping ref book, MEW drill & tap ref.charts (early years)..

George

[David LittlewoodParticipant @davidlittlewood51847]

Guys,

Listen to Roderick, he's the only one who has given the correct advice so far. Most thread tables give tapping drill sizes which are too small; this dramatically increases the risk of tap breakage, especially if they are not perfectly sharp. This is the worst for ISO metric threads (where the fact that the taps are bigger than nominal size is an added factor) but this is true to some extent for all sizes.

Buy the book he recommends, it'll be worth it, it's only about 5 quid!

David

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