Unknown d1-3 adapter ??
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  1. #1
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    Default Unknown d1-3 adapter ??

    HELLO, Can someone Identify this “Adapter” and what it would be used for please.
    It came with a Monarch 10EE I purchased.
    See Pic’s.

    Kind Regards, Ken

    79e27957-2602-43e6-9578-318edd340979.jpg
    ff4d9bee-8669-44a8-a09d-c742b153f0f6.jpg

  2. #2
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    This would be a Step Chuck adapter, maybe a 3" size. The Monarch adapters don't always seem to align with the step chucks available from Hardinge.

    This would be used with a collet handwheel or lever collet closer and a step chuck that would allow for holding diameters larger than standard collets would accomodate.

  3. #3
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    Stick a 5C collet in to check if that fits the insides.

    Looks to me like a 5C step collet closer.

    Lesse... Like one of these... Hardinge 5C Round Smooth 2" Step Chuck, 1-1/4" Hole Size: Amazon.co.uk: Welcome

    Could be any variation of the same general arrangement in a different size. Cross check against the common (and uncommon) collet sizes charts.

  4. #4
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    Step chucks illustrated - probably from Pratt & Whitney
    Attached Thumbnails Attached Thumbnails step-chucks.jpg  


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