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Thread: Size of Drill Bit for holes on a homebuilt Hesslerk Altoid Amp

  1. #1
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    Size of Drill Bit for holes on a homebuilt Hesslerk Altoid Amp

    I just built a Hesslerk Altoid, however, his shop is closed so I cannot ask him these questions. I was wondering what size drill bit that I would need to drill the holes for the volume/power knob, 1/4th and 3.5mm jack? They are marked on the photo with the red arrows.


  2. #2
    Forum Member Don's Avatar
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    Re: Size of Drill Bit for holes on a homebuilt Hesslerk Altoid Amp

    I can't see your pics. I would measure the items and select a drill bit accordingly.

    As a guide, "imported" pots usually have 7mm, 8mm or 10mm threads, "US" pots usually 3/8" threads. "Imported" 1/4" jacks usually have 10mm thread and "US" jacks usually have 3/8" threads.
    I don't know about the 3.5mm jack.

    That sounds like a cool project. Can you tell us more about it?

  3. #3
    Forum Member Laker's Avatar
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    Re: Size of Drill Bit for holes on a homebuilt Hesslerk Altoid Amp

    Quote Originally Posted by niceties55 View Post
    I just built a Hesslerk Altoid, however, his shop is closed so I cannot ask him these questions. I was wondering what size drill bit that I would need to drill the holes for the volume/power knob, 1/4th and 3.5mm jack? They are marked on the photo with the red arrows.

    This speaks of the problems associated with poking a round hole in the Altoids tin.

    https://qrpbuilder.com/wp-content/up...l-drills-a.pdf

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