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  1. 6th August 2013, 05:51 PM #1
    dubdzine
    dubdzine is offline Novice
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    Default How to use 1/2 shank end mills in a ER 11 Chinese spindle

    Hello all,
    I have purchased a 110v spindle for my personal CNC router and was stuck with the small ER 11 collet. I need to use a 1/2 shank end mill for a school final project. Is there some kind of adapter from ER 11 to ER 20. Or even just a chuck with a 1/4 shank that can take up to 1/2 tool diameter.
    Marc
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  2. 6th August 2013 05:51 PM # ADS
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  3. 7th August 2013, 11:16 AM #2
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    Bob Willson
    Bob Willson is offline GOLD MEMBER
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    Default

    The short answer is 'no'.

    If you need to use a 1/2" bit in a small chuck then the only way is to buy a 1/2" bit with a 1/4" shaft.

    Depending on what you are cutting this is quite easy and cheap.

    See this
    Bob Willson
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