Daytona Pendant Tube Tap
Like Tree1Likes
  • 1 Post By Aku Ankka

Thread: Daytona Pendant Tube Tap

Results 1 to 7 of 7
  1. #1
    Member
    Join Date
    Jan 2016
    Posts
    5

    Daytona Pendant Tube Tap

    Hi All, Just wondering if anyone can point me in the right direction. I’m attempting to machine my own pseudo diver watch case and I plan to use a 7s26 Seiko movement with a generic Daytona tube and crown (Cousins part C8363 & C8361). Can anyone point me in the direction of a M3x0.30 tap please.

    Many Thanks,

    Si (Staffordshire, UK)

  2. #2
    Member
    Join Date
    Dec 2010
    Location
    London
    Posts
    543

    Re: Daytona Pendant Tube Tap

    Readily available from most engineering suppliers like Chronos or on eBay

  3. #3
    Member
    Join Date
    Nov 2013
    Posts
    72

    Re: Daytona Pendant Tube Tap

    I doubt you'll find that particular size readily available anywhere. The standard M3 thread has 0.5mm pitch and the fine MF3 has 0.35mm pitch.

    If you know the thread is actually M3 x 0.3, that is indeed a specialized size. I'm pretty sure a standard fine pitch M3 x 0.35 would work, but it's not ideal.


    Just a word of warning about cheap eBay taps... If you plan on using them more than once on steel, do yourself a favor a get a proper name brand tap set. There are usually two or three taps in a set and they are meant to be used consecutively one after the other. The first one cuts the initial thread, the second one cuts a little deeper and so on. The finishing tap will give you the final dimensions. Using a set of increasing taps makes threading stainless much easier than just using a single tap.
    Michael Maddan likes this.

  4. #4
    Member
    Join Date
    Dec 2010
    Location
    London
    Posts
    543

    Re: Daytona Pendant Tube Tap

    Quote Originally Posted by Aku Ankka View Post
    I doubt you'll find that particular size readily available anywhere. The standard M3 thread has 0.5mm pitch and the fine MF3 has 0.35mm pitch.

    If you know the thread is actually M3 x 0.3, that is indeed a specialized size. I'm pretty sure a standard fine pitch M3 x 0.35 would work, but it's not ideal.


    Just a word of warning about cheap eBay taps... If you plan on using them more than once on steel, do yourself a favor a get a proper name brand tap set. There are usually two or three taps in a set and they are meant to be used consecutively one after the other. The first one cuts the initial thread, the second one cuts a little deeper and so on. The finishing tap will give you the final dimensions. Using a set of increasing taps makes threading stainless much easier than just using a single tap.
    eBay is full of M3 taps in 0.3 pitch - M2.5 to M10 HSS Right hand Thread Tap Select size | eBay
    They are not even remotely hard to get hold of. I agree the quality of some taps may be questionable but the linked one is a reasonable quality HSS

  5. #5
    Member
    Join Date
    Jan 2016
    Posts
    5

    Re: Daytona Pendant Tube Tap

    Thanks all for the info. I agree with comments on eBay taps Aku, and I suspect that the link to the M3x0.3 will actually be 0.35 pitch but I will give it a try, but thanks to all for the replies.

    Cheers,
    Si

  6. #6
    Member
    Join Date
    Sep 2012
    Location
    Central Texas
    Posts
    1,696

    Re: Daytona Pendant Tube Tap

    Order the tap for the 6.0 mm crown:
    https://www.cousinsuk.com/product/th...ls?code=R44748
    Regards, BG

    Cheaper from JulesBorel in the US...but maybe not after postage and customs...?

  7. #7
    Member
    Join Date
    Jan 2016
    Posts
    5

    Re: Daytona Pendant Tube Tap

    Thanks BenchGuy, I hadn't spotted that one:)

    Cheers,
    Si

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

    Similar Threads

    1. Thoughts on aligning a pendant tube
      By Habitant in forum Watchmaking
      Replies: 7
      Last Post: January 13th, 2016, 20:09
    2. Tag Heuer crown/pendant tube replacement
      By dragonrolex in forum Watchmaking
      Replies: 6
      Last Post: May 14th, 2015, 15:34
    3. 8mm crown tube thread tap size?
      By respond123 in forum Watchmaking
      Replies: 2
      Last Post: April 29th, 2010, 20:40
    4. Replies: 2
      Last Post: December 7th, 2009, 23:12
    5. Crown tube to case, thread tap size on Prince?
      By can't find the time in forum Rolex & Tudor
      Replies: 0
      Last Post: July 19th, 2009, 08:14

    Posting Permissions

    • You may not post new threads
    • You may not post replies
    • You may not post attachments
    • You may not edit your posts
    •