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  1. #1
    Senior Member
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    Cool drilling acrylic and wood

    need help, I have to drill a 2,1/2'' hole and a 1,1/4'' hole for bulkheads. plus, a 3'' hole in wood. any ideas how? anyone have hole saws for a drill that size that I can borrow?

  2. #2
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    You will need some cup saws for wood Johnny. they are the same as the glass coring bit but have regular teeth for wood. You can get them in sets or individually. They are not too costly and very handy to have. Check out CTC at this link

    [http://www.canadiantire.ca/assortmen...=1097801709161

    the 3 inch may have to be bough separately
    Rob

  3. #3
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    kit

    Link did not work Johnny it only tanks you to the home log in page but you can get a 13 piece kit for 26 bucks
    Rob

  4. #4
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    Talking

    awsome! thanks rob

  5. #5
    Senior Member Zookeeper's Avatar
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    Johnny:

    I have the same comments as OSD. Just pick some up at CT, you will find many uses for them.

    A couple of tips when using them.

    Hole saws tend to burn their way through. This may or may not be fine depending how good you want your hole to look. Hole saws also don't cut the cleanest (especially on the back exit surface). So, clamp a piece of scrap wood to the back and cut/drill through both. This will give you a clean cut.

  6. #6
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    Yes the hole saws can be a little rough. If you have access to both sides you can drill the other way once the pilot bit is through the first side. This will also help keep roughness to a minimum.
    Rob

  7. #7
    Moderator Krugar's Avatar
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    I was only working with 1/8th acrylic, but a spade bit worked great if I took my time. Having wood behind where I was drilling helped too.

    I don't know if that scales up or not tho, we don't really play in the same pond

    Cheers!
    There is nothing so permanent as a temporary measure.

  8. #8
    Senior Member volitan's Avatar
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    these are what i use and find it alot better,and have alot more control than a hole saw less heat.....
    Derik...

  9. #9
    Senior Member volitan's Avatar
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    and if you need to go bigger you use an ajustable one
    Derik...

  10. #10
    Senior Member volitan's Avatar
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    but obviously your better off with a holesaw for the wood
    Derik...

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