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Gallery, Projects and General => How do I?? => Topic started by: JimM on February 03, 2011, 04:27:42 PM

Title: Anyone got a M4 0.5mm (metric fine) die
Post by: JimM on February 03, 2011, 04:27:42 PM
Hi all

I picked up a Verdict DTI a while ago but other than a giving it a quick once over at the car boot sale I've never really looked at it. Tonight I found it in the drawer and on a more careful examination it looks like it works nice and smoothly but it would appear that the top mounting post has been bent at some time - no biggy I thought just a 2 min job to knock up another one, however it turns out to have a not too common metric fine pitch thread.

So favour time...... has anyone got a M4 0.5mm die and if so would they mind putting about 4mm of thread onto the end of a 25mm long piece of 6mm stock.

I know I can buy a die for around £10 but it's something I'm only likely to ever use the once and the DTI only cost me £2  :)

Cheers

Jim



Title: Re: Anyone got a M4 0.5mm (metric fine) die
Post by: Ned Ludd on February 04, 2011, 07:09:20 PM
Hi Jim,
The other alternative would be to run a standard M4 tap down the hole and make the shaft to suit the new thread in the hole. Purists might hold their hands up in disgust, but it should work as it is no greatly loaded. It not as if any one from the Verdict Owners Club would "black ball" you.
Ned
Title: Re: Anyone got a M4 0.5mm (metric fine) die
Post by: AdeV on February 05, 2011, 05:07:49 AM
Hi all

I picked up a Verdict DTI a while ago but other than a giving it a quick once over at the car boot sale I've never really looked at it. Tonight I found it in the drawer and on a more careful examination it looks like it works nice and smoothly but it would appear that the top mounting post has been bent at some time - no biggy I thought just a 2 min job to knock up another one, however it turns out to have a not too common metric fine pitch thread.

So favour time...... has anyone got a M4 0.5mm die and if so would they mind putting about 4mm of thread onto the end of a 25mm long piece of 6mm stock.

I know I can buy a die for around £10 but it's something I'm only likely to ever use the once and the DTI only cost me £2  :)


Jim,

I'm pretty sure I've got one knocking about, I'll have a check when I get into the workshop shortly. What sort of metal (steel? brass? ali?) do you need the thread in?
Title: Re: Anyone got a M4 0.5mm (metric fine) die
Post by: JimM on February 05, 2011, 10:20:58 AM
I'm pretty sure I've got one knocking about, I'll have a check when I get into the workshop shortly. What sort of metal (steel? brass? ali?) do you need the thread in?

Hi AdeV

The original part is steel, but any metal will be fine, it's only used to mount the DTI to an arm or stand so isn't a stress critical part or anything.


Ned

If Ade can't find his die then I think I'll give your suggestion a go


Thanks to you both for replying

Cheers

Jim

 
Title: Re: Anyone got a M4 0.5mm (metric fine) die
Post by: AdeV on February 05, 2011, 11:31:15 AM
Hi Jim,

Apologies, I only have M4 0.7 and M4 0.75 :( I should have said earlier, but I'm having a massive clear-up of my bench (no more tides!), including making some under-bench storage (since Ralph told me off for not having any  :poke:) - and I forgot to come back out to the office.

Title: Re: Anyone got a M4 0.5mm (metric fine) die
Post by: JimM on February 05, 2011, 01:34:00 PM
No problem Ade, thought it was going to be a bit of a long shot when I orginally asked anyway

I'll give Ned's suggestion a shot, it's not like I got much to lose, not even the price of a pint  :)

Cheers

Jim
Title: Re: Anyone got a M4 0.5mm (metric fine) die
Post by: jim on February 05, 2011, 01:38:36 PM
i've got one (just been and checked, its even a good quality split die!)
Title: Re: Anyone got a M4 0.5mm (metric fine) die
Post by: JimM on February 08, 2011, 01:42:26 PM
Just like to say a big thanks to Jim, he knocked me up a replacement part and I now have a very useful DTI

The smilie says it all

 :nrocks:

Cheers

Jim
Title: Re: Anyone got a M4 0.5mm (metric fine) die
Post by: Bogstandard on February 08, 2011, 02:03:18 PM
A good ending all around then.

It really is nice to see members helping each other out in a situation like this.

Another good reason for being a member of MadModder  :mmr:

Good on you Jim.


Bogs
Title: Re: Anyone got a M4 0.5mm (metric fine) die
Post by: jim on February 09, 2011, 08:39:17 AM
Happy to help!

funny thing is, i bought the die in error a while back!
Title: Re: Anyone got a M4 0.5mm (metric fine) die
Post by: AdeV on February 09, 2011, 09:00:19 AM
Jim & Jim - good fix between you! :)

This leads me onto a question....

I have two M4 metric dies: an 0.7 & 0.75. According to a brief google, M4x0.5 is Metric Fine, and M4x0.7 is metric coarse. So what the heck is M4*0.75?
Title: Re: Anyone got a M4 0.5mm (metric fine) die
Post by: Ned Ludd on February 09, 2011, 01:07:44 PM
Hi AdeV,
Are you sure that your M4x0.75 is not in fact a M4.5x0.75?
Ned
Title: Re: Anyone got a M4 0.5mm (metric fine) die
Post by: AdeV on February 09, 2011, 01:19:41 PM

Are you sure that your M4x0.75 is not in fact a M4.5x0.75?


It definitely has M4 0.75 stamped on it, but it's from a cheap-arsed set I bought the other year, so it could be misprinted...?
Title: Re: Anyone got a M4 0.5mm (metric fine) die
Post by: John Swift on February 10, 2011, 02:25:42 PM
  

hi

I've found a reference to M4 x 0.75
 
at    http://www.sizes.com/tools/thread_metric.htm


its not the usual ISO coarce or fine thread but JIS
what ever that is !


    John
Title: Re: Anyone got a M4 0.5mm (metric fine) die
Post by: Bluechip on February 10, 2011, 02:32:03 PM
 

hi

I've found a reference to M4 x 0.75
 
at    http://www.sizes.com/tools/thread_metric.htm


its not the usual ISO coarce or fine thread but JIS
what ever that is !


    John


J I S  Japanese Industrial Standard

Was on some of the IT gear I worked on, Made by Nippon Peripherals ..


Similar to DIN I suppose   :scratch:
BC
Title: Re: Anyone got a M4 0.5mm (metric fine) die
Post by: John Swift on February 10, 2011, 02:41:15 PM


  Hi Dave

 may be I should of worked that out

 its kind of obvious now


          John