[Jewelry making - Article 00239] - Re: [Orchid] Replace the chuck on a low end bench drill press?

[Gary Bourbonais]

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    Hi Christine and List.... 

    The "33" refers to the Jacobs Taper size, that it, the tapered hole
    in the back of the chuck that you use to mount it....this means that
    any chuck with that "33" hole will mount to that machine's spindle... 

    Jacobs brand chucks are more or less the standard in the industry,
    and they come in several grades of relative precision and duty as
    well as size ranges... There are also high quality keyless type chucks
    available by Jacobs, Albrecht and others... 

    Rule of thumb...find the size range and capacity most useful for
    you, and get the best grade you can afford....it will be money well
    spent... 

Gary W. Bourbonais


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