MLCS Router Collet Extension
Stretch your collet!
For 1/2" Collet Routers.
Give your router bits an additional 2‑1/4" (for #9465 or 2" for #9473) when you extend them through the router table top with our router collet extension. Eliminate the dangerous temptation of withdrawing the shank from the collet in order to raise the bit and to "provide the full depth of cut." The router collet extension makes it possible to use all diameters of 1/2" and 1/4" shank bits safely. Place the router collet extension shank in the 1/2" router collet and the router bit shank in the extension collet and tighten both. Wrenches and instructions included. Collet Extension for 1/2" shank bits includes 18mm and 28mm wrenches and the Collet Extension for 1/4" shank bits includes two 18mm wrenches. Note that for previously sold item's #9464 and #9468 the large diameter is the same as in the chart below. NOTE: Will not work with 1/4" collet routers.
Collet Extension and Wrenches
for 1/2" shank bits
1-3/16" large diameter.#9465...............................$29.95
Collet Extension and Wrenches
for 1/4" shank bits
7/8" large diameter.#9473................................$29.95
WEB SPECIAL! 5 Piece Set.
SAVE $10! Get both 1/4" and 1/2" Router Collet Extensions plus a 3 piece wrench set
all customer reviews and ratings
Average Customer Rating: (13 reviews)
Add your own review for this product
By Eric JOnes (Waynesboro Va US)
I am sad that even though the problem of getting the bit out of the extension was first mentioned 8 years ago it still has not been fixed. I clamp the bit in a wooden jawed vise, and tap on the extension with a leather wound hammer.
MLCS NOTE: The collet extension is not designed to be self-releasing as this would be a safety hazard.
By Marion L Mabe (Memphis IN US)
Couldn't be happier with this purchase. The 1/2" to 1/4" extension is perfect for the guitar binding rabbet set sold by many Luthier (guitar making) suppliers. It allows the necessary height for using in router tables, and runs very true. My first test cut was perfectly smooth and very accurate. Fit and finish are excellent and the included wrenches are a nice touch. Packed well and shipped in acceptable time.
By Tom Brooker (Mount Vernon Wa US)
I purchased both extensions. I used the 1/2" first and was unable to get the collet to give up the router bit. I had to clamp the bit between 2 pieces of wood (with extreme pressure) and pry the collet away. tapping on it only drove the bit in deeper. Not a happy camper. Afraid to use the 1/4" extension.
MLCS NOTE: This collet is not self-releasing for safety reasons. Tapping on the side of the collet nut with a mallet should allow the bit to release safely.
By Linden Morassini (Pine Meadow CT US)
I have found that most shafts are larger at the top undersise of the cutters.
Therefore when I change bits i pull up on the bits about 1/8" and hold it there when i snug up the collet. This makes the bit come out without tapping the extension.
Also I want to find a thin rubber washer with a 1/2" I.S. diam.and slide it unto the bit shaft before placing it into the collet.
I think this will also stop it from binding.
By Paul Peer (Tabernacle NE US)
The "Collet Extension" does the job for which it was intended,However you have one heck of a time removing the bit. The Extension refuses to release the bit. a real pain in the neck.
MLCS NOTE: For safety reasons, the collet extension is not designed to be self-releasing. After loosening the collet nut, a quick tap on the collet nut with a wrench will cause the bit to release.
By Chris Forbes (Santa Clarita CA US)
Perhaps I am a tad bitter that I did not receive wrenches with the two extenders that I purchased, but my biggest problem with this set is that the collets do not cough up bits easily enough. When I have to unthread the collet almost all the way for a whack on the side to unseat a bit--and sometimes it takes more than that--I am not inclined to give these collets high praise. They do seem to be very free from runout, though. Perhaps if I had received wrenches, I might have rated these four stars.
MLCS NOTE: This customer ordered a lower priced version of the collet extension before we offered the wrenches as part of the package.
By Chris Forbes (Saugus CA US)
These extensions work fine. My only gripe is that I have to dig out two wrenches every time I use one because they weren't included when I got my set.
By Kevin McCluney (Houston Te US)
The extension works as advertised. The only problem is in removing bits from the extension. I eventually "hit" on the solution - loosen the collet nut on the extension, then tap on the bottom of the extension's shaft with a hammer (lightly). The bit will pop right out.
By Don Ramon Main (Broken Arrow Ok US)
I purchased this extender to make deep cuts in oblong dishes using a template and bushing. The diameter of the collet is to wide to use with any bit less than 1 1/4" to a greater depth than can be made with a normal router set up. I will just buy a 1 1/4" dish cutter and it should work fine. Just be aware of this limitation.
By bob sopko (bethlehem pa US)
By Richard Franks (Kyle Te US)
I purchased the extender to use my router to make bowls. Using the extender and a bearing guided dish cutter bit, I can use a template and remove stock to a depth of approx 3". I was concerned that the extender would introduce some wobble or eccentricity to the bit. This has not been the case at all. The sides of my deepest bowls are perfectly straight and require minimal sanding. Great product, great price and great service - like always. rf
By Marc Rea (SIERRA VISTA AZ US)
This extension is a great idea. It allows me greater flexibility when I use my router table! Now I can use bits that would not clear the table top without raising them unsafely in my router's collet.
Well worth the price! I only wish I had bought them as a set.
By John Hanlon (Encinitas CA US)
I use both the 1/4 and 1/2" extensions in my router table. They have made all the difference in the world in the ease of changing bits and obtaining the exact height I want. At first I tried changing bits while the extensions were still in the table but found it easier to pull the extension and change the bit out of the router.
I only gave the extensions 4 stars because I found it difficult to remove bits that were narrower than extension collet nut. On most bits as the nut is loosened it pushes the bit out of the collet, but on a bit that is the same diameter or less than the collet capacity, the nut slides past it. I've had difficulty freeing these bits from the collet.
This issue aside, I like the extensions alot and use them constantly.