Router Collet Nut Wrench Size?

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Forum topic by yahelarmster posted 10-16-2013 11:14 PM 4541 views 0 times favorited 13 replies Add to Favorites Watch
View yahelarmster's profile


9 posts in 1845 days

10-16-2013 11:14 PM

Hi there guys, i just got a router and it came without a wrench, so i was wondering if all router nuts are the same size or do they vary, i don’t want to use a wrong size and ruin the nut, thanks !

13 replies so far

View MT_Stringer's profile


3175 posts in 3381 days

#1 posted 10-16-2013 11:20 PM

The size varies. Sometimes standard, sometimes metric. Got a ruler?

What model router?

-- Handcrafted by Mike Henderson - Channelview, Texas

View runswithscissors's profile


2848 posts in 2175 days

#2 posted 10-17-2013 07:07 AM

Go to your favorite pawn shop and dig through their bin of wrenches. Usually sell for $.50 to $1. And I agree with above post, that there are as many sizes of nut as there are brands of router.

-- I admit to being an adrenaline junky; fortunately, I'm very easily frightened

View Fred Hargis's profile

Fred Hargis

5097 posts in 2643 days

#3 posted 10-17-2013 11:20 AM

You might need 2 wrenches. Some of them require one for the arbor as well.

-- Our village hasn't lost it's idiot, he was elected to congress.

View Bluepine38's profile


3379 posts in 3235 days

#4 posted 10-17-2013 02:52 PM

Each brand seems to insist on having a different size. I find the quickest way is to buy an inexpensive (cheap)
caliper to measure the nut and then go the pawn shop route. I am lucky to have a good tool store here in
Missoula that actually stocks the wrenches for the routers they sell, so when I lost one, I simply drove over
and bought another. Do not ask how I “lost” the one.

-- As ever, Gus-the 79 yr young apprentice carpenter

View Ken90712's profile


17575 posts in 3338 days

#5 posted 10-17-2013 03:26 PM

I have 4 and all 4 are different including to of my Tritons. Different HP

-- Ken, "Everyday above ground is a good day!"

View toddl1962's profile


29 posts in 2079 days

#6 posted 10-17-2013 04:34 PM

And another thing about Tritons…I ordered a wrench for a Triton 3 1/4 HP and it did not fit my Triton 3 1/4 HP. I ordered the 2 1/4 HP wrench and it fit. I think Triton must have changed the collets they shipped with the later 3 1/4 models.

-- Todd

View yahelarmster's profile


9 posts in 1845 days

#7 posted 10-17-2013 06:37 PM

wow, thanks for the advise guys, seems like I need to measure the nut and find a wrench that fits, well… that’s life i guess, and manufacturers, they should make a standar nut.

View yahelarmster's profile


9 posts in 1845 days

#8 posted 10-17-2013 06:38 PM

my router is a mexican brand I guess, Truper model ROU-A2, but even customer service don’t know the size, can you believe it? ha! well, gotta go measure the nut and find a wrench.

View MT_Stringer's profile


3175 posts in 3381 days

#9 posted 10-17-2013 07:18 PM

Double check to see if you can lock the shaft or if you need two wrenches – one to secure the shaft and one to loosen/tight the collet.

Edit: Is this it?

-- Handcrafted by Mike Henderson - Channelview, Texas

View exelectrician's profile


2328 posts in 2577 days

#10 posted 10-17-2013 07:20 PM

Take a wrench that you never use or CL or junk store for $0.50 and do this …..

-- Love thy neighbour as thyself

View Jim Baldwin's profile

Jim Baldwin

56 posts in 2508 days

#11 posted 10-18-2013 05:39 PM

Yes, that’s the way to do it as even the cheap stamped wrenches that come with the router often don’t fit the collet nut worth a damn. I believe the nuts themselves are intentionally off-size as no wrenches under heaven seem to fit. I think it’s a common design feature to discourage mighty-mike-idiotts from using a long wrench and wrecking the threads and throwing router bits.

-- Jim Baldwin/

View Rick S.'s profile

Rick S.

10579 posts in 3182 days

#12 posted 10-19-2013 05:59 AM

No Owners Manual? Those wrenches should have come with the Router!

-- (Rick S.)... "Don't Worry About What People Think! They Don't Do It Very Often!" (Like jbay)

View PaulDoug's profile


1602 posts in 1853 days

#13 posted 10-19-2013 01:50 PM

You can be sure it is a metric size(s). My Bosch takes a 16 mm and a 24 mm. Do you have a digital caliper to measure it with.

-- “We all die. The goal isn't to live forever; the goal is to create something that will.” - Chuck Palahniuk

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