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I need a collet extension. I am thinking of buying Router Technologies EX 2080 Xtreme Xtension Professional Router Bit/Collet Extension - https://www.amazon.com/Router-Techn...d=1469553587&sr=1-3&keywords=collet+extension. The advantage is that it can be used with 1/2" and 1/4" shank bits. Does anyone have experience with this? My concern is that the bit is fastened with a hex-screw rather than a threaded nut. The other option I am considering is CMT 796.001.00 Router Collet Chuck Extension for 1/2-Inch Collets, 1/2-Inch Shank with the limitation that it accepts only 1/2" bits. Any guidance will be appreciated.
 

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I have the CMT...
no worries.. no balance/resonation issues that I have found w/ the set screw style...
balance/resonation issues can be detrimental to your router's bearings/field/armature...
use reducing collets to enable for ¼'' shanks...
 
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.............. Does anyone have experience with this? My concern is that the bit is fastened with a hex-screw rather than a threaded nut. The other option I am considering is CMT 796.001.00 Router Collet Chuck Extension for 1/2-Inch Collets, 1/2-Inch Shank with the limitation that it accepts only 1/2" bits. Any guidance will be appreciated.
I have both. First I got the CMT one. I needed an extra 1" due to my table's thickness which I was unable to change. It frightened the heck out of me and due to it's length, the bit would not go below the table.

Then I found the Xtreme XTension. Wow, chalk and cheese. It worked great immediately, no fear, locked it into the router and used a straight bit immediately with a great result. It gave me the extra height I needed and it is transferrable to any 1/2" router. Using 1/4" bits is also no problem. Just shove in the 1/4" thingy with the slot in it's side lined up with where the allen screw goes through to tighten it. Then just tighten away.

I now have above table bit changing, so no need to go diving under the table.

I have read some users have experienced the allen screw breaking or rounding out after a time so they bought stainless steel ones. I got 4 stainless steel ones and replaced mine, keeping the other 3 for future use, nothing like being prepared. Also shiny stainless steel in the shiny extension does look pretty :lol:

I have never had a bit come loose and no experience of wobble due to it being out of balance, unlike the CMT one.

Hope this helps.
 

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Just looked at the amazon link you put up. It shows an allen key. Mine came with a T-handled hex key with a ball end. If you get this and it only has the allen key I'd suggest getting a t-handled hex key with the ball end as it does make it easier when the extension is less than an inch above the table.
 

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Discussion Starter #6

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On the same topic - I see that Amana makes a collet reducer and a reducer bushing. From the pictures, looks like collet reducer is what I need. The right size bushing (1/2 to 1/4) is available through Amazon, the collet reducer is not - adding about $6.50 shipping to a $6.20 item through ToolsToday. More important of course is getting the right item especially on something that has safety implications.
 

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My Hitachi M12V only came with a reducer bushing like the one you linked to for using 1/4" bits. I don't think a 1/4" collet is available for it. I've never had a problem using it. Lee Valley sells quite a few bushings for different size shanks. They sold for C$4.80 last time I bought some.
 

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Hank if you only need a little bit more extension you might consider the Musclechuck. ..............
The problem with the muscle chuck is they aren't interchangeable to every router, so if you change the router in the table you will probably need to buy a new one. Whereas the Xtreme Xtension is just taken from one router and put in another.
 

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+1, Angie...like Alton Brown (Food Channel) says "There is no room in my kitchen for single purpose tools..."
 
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The problem with the muscle chuck is they aren't interchangeable to every router, so if you change the router in the table you will probably need to buy a new one. Whereas the Xtreme Xtension is just taken from one router and put in another.
True and part of the reason I don`t have one yet is because I haven`t decided which router is going in my newest table but the reviews have been so overwhelmingly positive that at some point I probably will get one.
 

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Discussion Starter #14
I decided to go with the CMT extender - if Stick uses it, that is a great recommendation. I also ordered an Amana 1/2" to 1/4" collet reducer. I understand that Amana is a very good brand, and the price was right.
 

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I decided to go with the CMT extender - if Stick uses it, that is a great recommendation. I also ordered an Amana 1/2" to 1/4" collet reducer. I understand that Amana is a very good brand, and the price was right.
thanks for vote...

never had an issue w/ Israel made Amana...
now their Chinese made stuff leaves a lot to be desired and is way way over priced...
for reducing collets I use Leigh or Travers machine...
 

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thanks for vote...

never had an issue w/ Israel made Amana...
now their Chinese made stuff leaves a lot to be desired and is way way over priced...
for reducing collets I use Leigh or Travers machine...
Oops - here I am in Israel and didn't know that they are now outsourcing to China. I'll see what I get and let you know how it works out.
 

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Oops - here I am in Israel and didn't know that they are now outsourcing to China. I'll see what I get and let you know how it works out.
have their FJ bits...

Israel.. long time much use...
China.. few hours..

you have to look closely for country of origin...
look to the shank....
 

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Discussion Starter #18
have their FJ bits...

Israel.. long time much use...
China.. few hours..

you have to look closely for country of origin...
look to the shank....
Got my CMT extender and Amana 1/2" - 1/4" reducer (made in Israel :smile:)
Question - does the extender go all the way into the collet or need to be pulled back a bit? (I assume that it goes all the way in) Does the bit need to be pulled back when put in the extender? (I assume so).

Another related question: can a bit with a 6 mm shaft be used safely in a 1/4" collet? 12 mm shaft in a 1/2" collet?

Thanks
 

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never assume anything..
pull back on both...

safely no...
they will be subject to creep...
 

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1/2 inch = 12.7mm and 1/4 inch = 6.35mm. That's too much difference in size from 12 and 6 in my opinion too Hank. Not only that but you might damage the collets trying to squeeze them down that much.
 
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