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» Termpro Audio Forum » Installer's Corner » Fabrication » Flush trim bits

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Author Topic: Flush trim bits
Alaake
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Ok I have a few questions on these things....

1) How long do they normally last?
2) Is there cheap ones that suck balls and go dull after a few holes? And nice ones that last forever?
3) Does the size/power of the router you are using them in have an effect on the life of the bit?
4) What are THE best kind?
5) Do you have to go really slow with them in order to not burn them up?
6) WTF am I doing wrong here?

If you can't tell I just had my first experience with these things today......I have mixxed feelings. I paid $17 bux for a bit. I cut 7 holes and the thing is cutting like crap already. Granted the router I'm using hasn't really reached manhood yet I would think that these things would last a little longer. Don't get me wrong I love not having to get "jiggy" anymore but if I have to spend $17 each time I want to build something I may just have to reconsider if this is the answer.

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Posts: 2463 | From: A gravel pit in Iowa | Registered: Feb 2003  |  IP: Logged | Report this post to a Moderator
Andy Jones
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are you using a flush trim bit to cut out circles for speakers? If so, that is the wrong bit. You need a spiral bit. I use a spiral upcut bit.

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MR.T3
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Al, I am a cabinet guy remember.....
Call me and I can guide you the right way on bits.

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Neill Barber
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My bit says 1" straight cut on the box. I paid around $30 and works fine.


NeillBarber

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Broken Silence - Johnny
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I have used them quite a bit, used cheap and expensive. Didnt notice a whole lot of difference in them. I know that when you are cutting a ton of holes in succession bearings tend to lock up on the bits. Having a good router that spins fast will help your bit cut better and most likely last longer.

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Bumpin' Yota
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quote:
Originally posted by Andy Jones:
are you using a flush trim bit to cut out circles for speakers? If so, that is the wrong bit. You need a spiral bit. I use a spiral upcut bit.

I agree - a flushing bit is intened to only have 1/4 of any side cutting and the other 3/4 to eject the dust and chips. You'd use a flushing bit when an mdf panel is juuust over the edge of a box and you need to flush it.

The bit you need is a pattern cutting bit - typically a spiral bit with a bearing or 2 on the end of it. For handheld routers you'll want upcut. Table routers will need down cut spirals. [Smile]

HP is your friend in the router world and im loving my 3HP DeWalt 625 router! [Big Grin]

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winslow
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Whiteside Machine is where it's at for router bits.

Cheap bits don't last long at all...good bits have a lot thicker carbide and stays aharper longer. I would recommend not going cheap on router bits unless you really have to. Good router bits will last you for a long time.

Whiteside Machine and Amana make the best bits.

Whiteside bits can be had at www.routerbits.com Or, since they are local to me, I know a rep and have the hookup on them [Smile] .

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Audio Illusions
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quote:
Originally posted by winslow:
Whiteside Machine is where it's at for router bits.

Cheap bits don't last long at all...good bits have a lot thicker carbide and stays aharper longer. I would recommend not going cheap on router bits unless you really have to. Good router bits will last you for a long time.

Whiteside Machine and Amana make the best bits.

Whiteside bits can be had at www.routerbits.com Or, since they are local to me, I know a rep and have the hookup on them [Smile] .

muahahahaha
[Big Grin]

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Joey
Audio Illusions
Hickory NC
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Zero tolerance policy for prefab enclosures =)

Posts: 334 | From: nc | Registered: Mar 2003  |  IP: Logged | Report this post to a Moderator
   

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