WTB NMTB40 shank for Enco boring head
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  1. #1
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    Default WTB NMTB40 shank for Enco boring head

    Looking for an NMTB40 shank for an Enco automatic boring head. I have an R8 shank for it but an NMTB40 mill. If some one needs the R8 shank I will let it go. Threads for the boring head are .938 dia/12 TPI. e295e928-9156-4363-b6ca-990d087b66b6.jpg

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    Try to find another Enco or Gamet boring head with the shank you want. Sell the one with the R8 shank. Otherwise figure out how to make your own shank.

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    Or get a 40 x R-8 adapter

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    Thanks for the ideas. I’m not in a huge hurry to find an NMTB40 shank, just something that I should get sometime. I would like to avoid the adapter if possible but it may be the way I have to go. I have seen very very few NMTB40 shanks for the Enco head I have, definitely none for sale at the moment that I’ve seen.

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    One thing -- I am kinda stuck with this boring head or any like it with the same shank thread specs. I bought this head for a specific “end boring” line boring project and now have a boring bar that is threaded to accept this head. That was kind of a speedy toy to get made. Also why I hesitate to make an NMTB40 shank for it. Out of my abilities at the moment and not cheap to have done.

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    Gearclash,

    If you decide to let go of that R-8 shank, I'll be glad to buy it from you for a reasonable price. Free is okay, too. PM me.

    Ken

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    If I were to make a shank I would start with a 40 taper Microbore bar. I found some as cheap as $25 on the bay.

  8. Likes gbent liked this post
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    Better recheck your threads. I believe that is a M24 x 2.0 thread.

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    Believe it or not, it is .9375-12 thread. I tripled checked mine and that is what I got. I'll see if a M24 x 2 tap will go, I doubt it will, that was my thoughts, too. Ken

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    Quote Originally Posted by gbent View Post
    Better recheck your threads. I believe that is a M24 x 2.0 thread.
    I checked with a thread gauge and it is definitely not a 2.0mm pitch thread. It is close but clearly not that.

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    Quote Originally Posted by 4GSR View Post
    Gearclash,

    If you decide to let go of that R-8 shank, I'll be glad to buy it from you for a reasonable price. Free is okay, too. PM me.

    Ken
    Did you get a PM? I tried to send one. (I think.)

  13. #12
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    Yes I did. I thought I replied back. Maybe not. Been too busy this week, I'll take a look in a bit. Ken


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