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  1. #1
    Member
    Join Date
    Jan 2003
    Location
    Mt Laurel, nj, usa.
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    77

    What size Dovetail bit to use


    Never having made half-blind Dovetails before, I'm planing on building a cabinet with several drawers.

    But what size dovetail bit should I use. If the drawer material is 1/2" thich should i use a 1/2 Dovetail bit? I think a common size is a 1/2" 14 degree bit. Or is it irrelevant on the size of the Dovetail bit?

    Thanks

    John

  2. #2
    Member
    Join Date
    Dec 1969
    Location
    Minnesota.
    Posts
    4,589

    RE: What size Dovetail bit to use

    John

    What DT jig will you be using? Reason I ask, is that the instructions that come with the jig should state what bit to use with that jig.
    Keystone

    One of the Original Charter Members. Circa 2000

    No longer here. Can now be found at WoW.




  3. #3
    Member
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    Sep 2004
    Location
    Concord, NC, USA.
    Posts
    1,841

    RE: What size Dovetail bit to use

    Not only the dovetail bit, but the collar that actually follows the jig is very important, and also specified by the jig manufacturer.

  4. #4
    Sonny Edmonds
    Guest

    RE: What size Dovetail bit to use

    With the other responces I would add that a 1/2" 14 degree is the most commonly used with most DT jigs.
    I have the lowly Craftsman DT jig. [link:home.earthlink.net/~sonnypie/marilyn.htm | HERE] is how it works. ;)

    :D

    [link:www.sonnyedmonds.com | Sonny Edmonds]
    "Precision Firewood Specialist"
    God Bless America !
    One Nation Under God!
    "I was raised around lead based paint.
    It ain't an excuse, just a fact."

  5. #5
    Member
    Join Date
    Jan 2003
    Location
    Mt Laurel, nj, usa.
    Posts
    77

    RE: What size Dovetail bit to use


    I will be using a Jointech fence system (similar to the Inca).

    The templates do indeed specify the bit size. For 1/2" dovetails equally spaced it says to use a 1/2" bit, 14 degrees. For 3/8" use a 3/8" bit etc. (it does say that you need to practice trail cuts due to manufacturing differences in the bits).

    But my question is really does the stock thickness matter? With my drawer stock 1/2" thick then using a 1/2" bit means my dovetails are 1/2" wide, correct? What happens when I use 3/4" stock. Surely the dovetails will still be 1/2" wide but will I have to change any set-up?

    Does anybody have any expereince using these fence systems cutting Dovetails?

    thks

    John

  6. #6
    Sonny Edmonds
    Guest

    RE: What size Dovetail bit to use

    No.
    Some folks have a dedicated router for DT. The idea being that once set-up that don't have to "dial it in" again.
    I don't do that myself, except for the 1/4" relife bit, that one stays set.
    Joint Tech... No. No 'speriance with that particular rig for me.
    3/4" with 1/2" Dovetails? Well a picture is worth a thousand words.
    http://home.earthlink.net/~sonnypie/9.jpg

    All 3/4" solid oak. 1/2" blind dovetails.
    [link:home.earthlink.net/~sonnypie/mamas.htm | The whole story]

    :D

    [link:www.sonnyedmonds.com | Sonny Edmonds]
    "Precision Firewood Specialist"
    God Bless America !
    One Nation Under God!
    "I was raised around lead based paint.
    It ain't an excuse, just a fact."

  7. #7
    Member
    Join Date
    Jun 2002
    Location
    Nath Saburbin Bahstin, Massachusetts, USA.
    Posts
    4,570

    RE: What size Dovetail bit to use

    Without using 1000 words . . . you are going cross grain to create tails through the end of a board 3/4" thick. The spaces between the tails will be 1/2" deep. As you go into the end grain of the other piece of wood, you'll be making grooves 1/2" deep and just wide enough to accept the tails. With most jigs like what Sonny is showing on his site, you can do any board from about 3/8" to 1-1/4" thick with the same jig and 1/2" bit.

    ALSO . . . Sonny, Does that Craftman jig have a plastic or metal comb? I'm interested in one, but was told to spend the bucks and get one with an aluminum or steel comb. Do they have other sizes available for it too?

  8. #8
    Sonny Edmonds
    Guest

    RE: What size Dovetail bit to use

    Mark,
    Mine the one with the plastic combs.
    I've had it since the '70's.
    I have kinda longed for a bigger snazzier one, with those camming clamps on it.
    But I can't see the whorehouse price of a Liegh jig, myself. Maybe the PC.
    But I just stick with my lowly Craftsman. Sigh... It's like an old Friend to me. ;)

    :D

    [link:www.sonnyedmonds.com | Sonny Edmonds]
    "Precision Firewood Specialist"
    God Bless America !
    One Nation Under God!
    "I was raised around lead based paint.
    It ain't an excuse, just a fact."

  9. #9
    Member
    Join Date
    Jan 2003
    Location
    Mt Laurel, nj, usa.
    Posts
    77

    RE: What size Dovetail bit to use


    Thks guys. I got the picture now

    John

  10. #10
    Member
    Join Date
    Feb 2002
    Location
    Arkville, NY, USA.
    Posts
    1,441

    RE: What size Dovetail bit to use

    Mark,
    i am just gonna pipe in and say that the plastic is nice so that if you happen to do something knuckleheaded like me and pick the router UP, your bit, and you too i think, will be very happy its plastic. :) :)

    later,
    John "mapleman" Fairbairn III
    "Me don't know, I justa build 'em" :P

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