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1/2'' to 8mm Collet Adapter

Item #
24635
Rating:
90% of 100

This collet reducer allows you to use 8mm shank router bits with your 1/2" collet. The collet adapter slips into your existing 1/2" collet, and the router bit is then inserted into the adapter. The expansion slot ensures a tight grip on the router bit shank. With the ability to use 8mm shank router bits, you'll have access to a wider bit selection. 8mm shanks are also slightly thicker than 1/4" shanks, for better stability.


Features:
  • Sleeve reduces the size of your router collet from 1/2" to 8mm
  • Allows you access to a wider selection of router bits
  • Expansion slot for a tight grip on the shank
  • Precision-machined steel
  • Measures 1/2" diameter x 1" long
(1) 1/2'' to 8mm Collet Adapter
More Information
Manufacturer Part Number TA708041
Weight 0.0500
4.5 / 5.0
4 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
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Excellent tool.
Indispencable tool using 8mm shank on a 1/2" chuck. It works perfectly every time.
May 25, 2018
Purchased
1 year ago
Woodworking Experience:
Intermediate
Makes my bits usable.
Does exactly what it is supposed to do: allows me to use my 8mm bits in my 1/2" collet router.
April 8, 2017
Purchased
over 2 years ago
Woodworking Experience:
Intermediate
Rockler Rocks!
The Rockler 8mm collet adapter fit perfectly on my Ridgid R2911, and achieved great results. Pictures are posted on my Instagram page. I was told that it was not compatible with Rockler product's. And even the Rockler universal adapter router plate fit like a glove.
January 24, 2017
Purchased
over 3 years ago
Woodworking Experience:
Intermediate
Works good. It needs a flange on the end to make it easier to remove.
April 2, 2019
Purchased
10 months ago
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 3 questions Browse 3 questions and 6 answers
Why did you choose this?
Rockler Store
Hopefully it works with my routers for use with my Leigh dovetail jig.
James D on Nov 13, 2019
Might have damaged by over-tightening in attempt to stop slippage of dovetail bit
Barry R on Jul 12, 2019
Hopefully it works with my routers for use with my Leigh dovetail jig.
James D on Nov 13, 2019
Because I lost the other one
Julio S on Nov 5, 2019
Might have damaged by over-tightening in attempt to stop slippage of dovetail bit
Barry R on Jul 12, 2019
I need a couple of spares just in case!!!
Tim F on Apr 2, 2019
lost mine when chuck loosened up
Allen R on Mar 13, 2019
Because it was missing from the Dove Tail Jig kit
Roderic T on Mar 13, 2019
for my router
Keith G on Mar 12, 2018
same
Merland R on Jan 23, 2018
Leigh says it's needed for my router to use the FMT Pro.
Shane O on Nov 7, 2017
to fit a new dovetail bit
Kelly D on Aug 4, 2017
because for some reason Rockler decided to make it necessary to have an adapter for a standard 1/2" shank. You tell me.
jkstratford on Jun 27, 2017
purchased a 8mm spiral upcut bit from machine shop supplier to make my own domino joints with my router and a jig
Kenneth K on May 13, 2017
Same as above, misplaced collet reducer.
Jim on Dec 26, 2016
This goes with CTH bit
Larry J on Dec 20, 2016
for use with 8mm end mill in router
don m on Oct 9, 2016
to use with dovetail jig
Paul on Oct 9, 2016
The one I have is malfunctioning
BOB W on Jun 20, 2016
needed the adapter for routing dovetails.
Allan C on Mar 7, 2016
In order to use Leigh Dovetail 8 mm bits
David M V on Jan 3, 2016
Rocker only had the bit I needed in the 8mm size, so i had to buy this. It works fine, but I only need it for this one bit.
Tim R on Jan 1, 2016
Needed it
Gary C on Nov 20, 2015
I need it for my router
Sam R on Nov 19, 2015
Wouldn't have got this, should have gone to other supplier for one with no adapter
Herbert B on Oct 16, 2015
Needed for my router
Neal B on Oct 12, 2015
Have set of decent French router bits, this will allow me to use them in 1/2" collet.
marc p on Aug 29, 2015
so I can learn to use the dove tail machine I bought from you I lost my collet that came with it
Wendy U on Aug 10, 2015
Hi, bougt it because it was a good price, i only find the transport too expensive but went you working wood you go for it. Thanks
Rene N on Jun 2, 2015
fit router
david s on Apr 7, 2015
Because I lost the other one
Julio S on Nov 5, 2019
I need a couple of spares just in case!!!
Tim F on Apr 2, 2019
Rockler claims there is less chatter than with a 1/4" shank. Is it that noticeable? I had trouble seating it, it slid inside my collet and I had to destroy the bit.
Frustrated on Oct 25, 2015
BEST ANSWER: Same thing happened to me. Mine came with the dovetail jig.
Is there a 1/4" to 1/4" collet extender??
Roger D on Mar 9, 2016
BEST ANSWER: The 1/2" to 8 mm collet is meant to be able to accommodate bits with an 8 mm shank. It is not really an "extender", I.e. a device to effectively elongate the router's collet.
Where can I find a 1/2" to 1/4"collett adaptor?
charles j on Dec 11, 2015
BEST ANSWER: I purchased mine at my local rocker store.
Prop 65 WarningWARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov

Prop 65 WarningWARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood.