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locking miter router bit

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Forum topic by jacob34 posted 426 days ago 1320 views 2 times favorited 29 replies Add to Favorites Watch
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jacob34

454 posts in 860 days


426 days ago

I am getting ready to build a blanket chest and while doing so purchased a new router table which of coarse made me start looking to purchase new router bits. I ran across a locking miter bit and thought it would work nicely with my project. I am curious if anyone has used the bit and if it is as strong in larger projects as say a rabbet. Thanks in advance.

-- so a bear and a rabbit are sitting on a log


29 replies so far

View Mosquito's profile

Mosquito

4500 posts in 889 days


#1 posted 426 days ago

I have used one for the legs on a side/end table. I bought a Freud brand bit, and used it in Oak. It’s a large bit, and has to hog off a lot of wood. Requires a lot of time to set up, and can’t really “sneak up” on it either, due to the perfect setup required. You also have to have a variable speed router, as with something that large you’ll have to slow it down.

I never tested the strength on it, but looks better to me than a rabbet for table legs. That was the main reason I got it. Wanted a mitered leg so the joint was on the corner, but wanted a “stronger” joint than just the two faces glued together. Whether or not it’s stronger, or worth it, I can’t confirm.

-- Mos - Twin Cities, MN -- Stanley #45 Evangelist - www.youtube.com/MosquitoMods

View jacob34's profile

jacob34

454 posts in 860 days


#2 posted 426 days ago

So as I have router with no speed control you would not recommend me purchasing it? I think it would look better as well and why I am looking into it.

-- so a bear and a rabbit are sitting on a log

View pintodeluxe's profile

pintodeluxe

3264 posts in 1410 days


#3 posted 426 days ago

You should be able to sneak up on the final depth of cut by moving the router table fence.
Either way, I would want a 2+hp router with variable speed.

What part of the project is it for? Legs?

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

View PaulJerome's profile

PaulJerome

47 posts in 1630 days


#4 posted 426 days ago

For the amount of time you’d spend setting up, you’d be better off with a splined miter.

-- Paul, Central Illinois

View AlanBienlein's profile

AlanBienlein

140 posts in 1271 days


#5 posted 426 days ago

Just order this from Infinity tools and all of your set up problems will go away. I’ve used it and it works as advertised perfectly! Lock miter master No need for set up blocks ever again. And here is a link to a blog about how to use it.

View Mosquito's profile

Mosquito

4500 posts in 889 days


#6 posted 426 days ago

Yes, you will need variable speed of some sort. The bit I bought said to not run it any higher than a specific RPM, which was lower than what my non-variable speed router would do by quite a bit. And as Willie said, higher HP is also a very good idea.

With regards to what Willie said, you can sneak up on it, but it’s a huge pain to do unless you set up some kind of specific stop to adjust the fence to when it’s at “full depth”. Then having to set up the bit for the other cut as well. It takes quite a lot of time, so as such, I would agree with Paul.

Edit: That infinity setup jig looks pretty slick. You can see how it would be a pain to “sneak up” on it…

-- Mos - Twin Cities, MN -- Stanley #45 Evangelist - www.youtube.com/MosquitoMods

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jacob34

454 posts in 860 days


#7 posted 426 days ago

Alan that is just cool. pinto I wanted to use it to joint the sides together.

-- so a bear and a rabbit are sitting on a log

View jacob34's profile

jacob34

454 posts in 860 days


#8 posted 426 days ago

can I assume that like with rail and style bits that quality is important for fit.

-- so a bear and a rabbit are sitting on a log

View danr's profile

danr

150 posts in 1781 days


#9 posted 426 days ago

Yes the setup jig lookis cool.
I wont buy one.
With a good dial caliper and patients a person can set up the bit just fine.
As has allready been mentioned, a powerful router set at a slow speed is reuired (see bit instructions for details).
I always cut these joints in one pass (no sneaking up).
Also, I always use a carrier / jig to hold the peice being run. I have only used the joint to make Stickley legs.

I have never questioned the joint’s strength as you are getting a huge ammount of glue surface.

Best regards

View SteveKnnn's profile

SteveKnnn

66 posts in 485 days


#10 posted 426 days ago

Anyone near Richmond, the local Woodcraft store has a locking miter demo this Saturday @ 1:00 pm (5/25/13)

-- Steve in Richmond, VA

View Loren's profile

Loren

7223 posts in 2244 days


#11 posted 426 days ago

There’s also drawer lock bits. It’s a variation on
the rabbet that shares some of the alignment
geometry with the lock miter.

-- http://lawoodworking.com

View ratchet's profile

ratchet

1283 posts in 2383 days


#12 posted 426 days ago

Kind of surpised that nobody has mentioned this. If you do a little testing (and you should) once you gfet it perfect, you can make simple setup blocks so you repeat the setup and get it right every time.

View jacob34's profile

jacob34

454 posts in 860 days


#13 posted 426 days ago

I am going to put a check by yes on the strength question. I want to use it to joint the sides of a blanket chest together and would think if you guys are using it on legs with no issues that a complete side would definitely be strong.

danr this maybe a stupid question but do you use a jig for safety, accuracy or both.

-- so a bear and a rabbit are sitting on a log

View jacob34's profile

jacob34

454 posts in 860 days


#14 posted 426 days ago

Loren I have a set of the drawer lock bits, haven’t used them yet. I like the look of the locking miter bit is why I ask versus the cabinet drawer lock bit.

-- so a bear and a rabbit are sitting on a log

View Shawn Masterson's profile (online now)

Shawn Masterson

1240 posts in 545 days


#15 posted 426 days ago

Am I out of my mind??? I run all router bits at full speed with a 3 1/4hp PC. From the smallest round over to a 3 1/2” panel raiser. I have never had any problems. Can some one advise me why I should run them slow

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