Question for the Swarfists

  1. 8ob

    8ob Forum Supporter

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    A few questions actually but the first is can someone identify this collet chuck, it has a 1" and a 1.25" collet. the straight shank is neither 1" or 24mm and it has a keyway . Is this of use to anybody?

    IMG_3009.JPG
     
  2. MattH

    MattH Member

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    Looks like an Osbourne Titanic with an R8 shank.
     
  3. m_c Member

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    East Lothian
    R8 shank should be 0.949 which works out at 24.1mm
     
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  4. 8ob

    8ob Forum Supporter

    Messages:
    4,686
    Location:
    moscow on thames
    Ok R8 with two imperial collets, of no use to me so if anyone wants it PM me.

    Next up for ID also seems oddball, possibly 3MT :dontknow:

    Smaller Titanic collet chuck in the box.

    IMG_3010.JPG IMG_3011.JPG

    Big end of taper is .933"

    IMG_3012.JPG


    Small end is about .811"

    IMG_3013.JPG


    And the end has a threaded hole.

    IMG_3014.JPG
     
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  5. Woody.v8

    Woody.v8 Blue gluer

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    PM sent regarding the R8 collet holder
     
  6. eLuSiVeMiTe

    eLuSiVeMiTe Forum Supporter

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    Far too slow. :(
     
  7. m_c Member

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    170
    Location:
    East Lothian
    Dimensions put it in the ballpark for MT3, but the hole in the end seems to be disproportionately large, but could just be the camera angle.
    MT3 milling chuck I'd expect to have a 12mm, or 1/2" thread (could be BSW or UNC depending on origin).
     
  8. ronan

    ronan Forum Supporter

    Messages:
    9,363
    dublin
    Good bit of kit, but they rob you of a bit of room in the z-axis compared to collets that fit into the end of the spindle. Only an issue on smaller machines of course.
     
  9. MattH

    MattH Member

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    I had one of these so I could use a 1-1/2” cutter in my Bridgeport. Try putting that in an R8 collet :laughing:
     
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  10. ronan

    ronan Forum Supporter

    Messages:
    9,363
    dublin
    Depends on the size of the shank on the cutter, 25mm or so should be no problem. I had a 120mm tct cutter in the 30 int horizontal spindle on the Tom Senior, milling large blocks of mild steel. Ran it very slow of course.
     
  11. 8ob

    8ob Forum Supporter

    Messages:
    4,686
    Location:
    moscow on thames
    Thanks @m_c I have checked the thread and its 1/2" whit. The whole thing is 6" long and there are four Collets with it from 1/4" through to 5/8". Again of no use to me so post on here if its of interest and PM me, donation to a children s charity will do as per @Woody.v8 did.

    Bob

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  12. eLuSiVeMiTe

    eLuSiVeMiTe Forum Supporter

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    Location:
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    Actually helpful on a mill drill. Gives some room to swap a cutter for a Chuck and twist drill without having to raise the head and lose register.
     
    Maker likes this.
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