Author Topic: 20mm Router Bits  (Read 42858 times)

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Offline Eoghan Brown

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20mm Router Bits
« on: February 08, 2013, 09:04 AM »
Looking for a 20mm router bit for a MFT project. Search found products from CMT and Festool but, looking for distributors of this product. Any Ideas?

TS55, CT36, Rotex 90 & 150, LR32, OF1400, Domino 500, MFX700, MFT.
30 years residential construction, 25 years of residential deconstruction, Professional Fire Service.

Festool USA does not pre-approve the contents of this website nor endorse the application or use of any Festool product in any way other than in the manner described in the Festool Instruction Manual. To reduce the risk of serious injury and/or damage to your Festool product, always read, understand and follow all warnings and instructions in your Festool product's Instruction Manual. Although Festool strives for accuracy in the website material, the website may contain inaccuracies. Festool makes no representations about the accuracy, reliability, completeness or timeliness of the material on this website or about the results to be obtained from using the website. Festool and its affiliates cannot be responsible for improper postings or your reliance on the website's material. Your use of any material contained on this website is entirely at your own risk. The content contained on this site is provided for informational purposes only and does not constitute professional advice.


Offline Peter Halle

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Re: 20mm Router Bits
« Reply #1 on: February 08, 2013, 09:37 AM »
Welcome to the FOG!  You should be able to get the Festool bit thru any Festool dealer.  The  (  Festool USA Website has a dealer locator function.  Additionally there are numerous internet dealers, some of which participate here.  If you scroll down to the bottom of the FOG home page and see a name in blue then you usually will have found a dealer.

Peter

Offline Tom Bellemare

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Re: 20mm Router Bits
« Reply #2 on: February 08, 2013, 10:08 AM »
I think you want Festool 491072.


Tom

Offline mparka

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Re: 20mm Router Bits
« Reply #3 on: February 08, 2013, 03:29 PM »
I ordered the Festool 20mm bit from Uncle Bob and received it a few hours ago. It looks more like a fostner bit than a router bit.  It really is designed for boring out a clean 20mm hole..


Offline Eoghan Brown

  • Posts: 12
Re: 20mm Router Bits
« Reply #4 on: February 08, 2013, 06:18 PM »
Thank you all. 
TS55, CT36, Rotex 90 & 150, LR32, OF1400, Domino 500, MFX700, MFT.
30 years residential construction, 25 years of residential deconstruction, Professional Fire Service.

Offline fritter63

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Re: 20mm Router Bits
« Reply #5 on: February 08, 2013, 08:48 PM »
Here's one of my new box beams made with the festool 20 mm bit (and lots of 4 mm dominoes!)


Offline thebicyclecafe

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Re: 20mm Router Bits
« Reply #6 on: February 09, 2013, 03:18 AM »
Hey Eoghan,
 Either of these ought to work, if you're just looking for a straight bit, 1/4" shank only though...:

http://www.amazon.com/Freud-04-552-Diameter-4-Inch-Straight/dp/B000P18UNS/
http://www.amazon.com/CMT-811-200-11-Double-Straight-2-Inch/dp/B001NI6PGQ/

I've used the CMT before, it's a good bit.
My first woodworking experience was as a Cro-Magnon. As a six year old, I took silver maple branches, stripped the bark, and washed the sap off the branches. While they were still wet, I would bend them into the shape of a bow, tie them in place, and air dried them for a few days. Then, with my newly made arsenal, I launched homemade arrows at squirrels with miserable accuracy.

Offline hrrb

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Re: 20mm Router Bits
« Reply #7 on: February 09, 2013, 05:59 AM »
I think you want Festool 491072.


Tom

I'd go for Tom's suggestion too...or this one from CMT, part no. 392.200.11

82165-0

Kind regards
Henrik

Offline fritter63

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Re: 20mm Router Bits
« Reply #8 on: February 14, 2013, 12:40 AM »
Hey Eoghan,
 Either of these ought to work, if you're just looking for a straight bit, 1/4" shank only though...:

http://www.amazon.com/Freud-04-552-Diameter-4-Inch-Straight/dp/B000P18UNS/
http://www.amazon.com/CMT-811-200-11-Double-Straight-2-Inch/dp/B001NI6PGQ/

I've used the CMT before, it's a good bit.

I have to disagree. Pls see my thread comparing the two types of bits. That straight bit ain't for plunging.

Offline Jmaichel

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Re: 20mm Router Bits
« Reply #9 on: February 14, 2013, 01:47 AM »
Here's one of my new box beams made with the festool 20 mm bit (and lots of 4 mm dominoes!)



I really like those box beams. Did you cover them anywhere else in the forum or this there first appearance?

James
TS-75, MFT/3, OF 1400, ETS 150, CT 26, CXS, Guide Rails, Clamps and a few other accessories.

Offline Michael Kellough

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Re: 20mm Router Bits
« Reply #10 on: February 14, 2013, 09:26 AM »
I think you want Festool 491072.


Tom

I'd go for Tom's suggestion too...or this one from CMT, part no. 392.200.11

(Attachment Link)

Kind regards
Henrik


Another view



Looks a lot like the Festool bit. The little perimeter scoring points are the key to a good cut.

.Less than $30 here.

Offline fastbike

  • Posts: 124
Re: 20mm Router Bits
« Reply #11 on: February 14, 2013, 10:54 AM »
Is the 10mm shaft going to fit in the US OF1400?
I was so much older then, I'm younger than that now.

Offline moody

  • Posts: 46
Re: 20mm Router Bits
« Reply #12 on: February 14, 2013, 12:29 PM »
Is it really wise to use a forstner bit in a plunge router? I would think the rotation speed of the router is much to high for a forstner bit?

Offline thebicyclecafe

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Re: 20mm Router Bits
« Reply #13 on: February 14, 2013, 12:42 PM »
Oops you're right, I stand corrected. It's a fine straight bit of course, the profile isn't that good for plunging those holes the OP wanted. Good catch!

Hey Eoghan,
 Either of these ought to work, if you're just looking for a straight bit, 1/4" shank only though...:

http://www.amazon.com/Freud-04-552-Diameter-4-Inch-Straight/dp/B000P18UNS/
http://www.amazon.com/CMT-811-200-11-Double-Straight-2-Inch/dp/B001NI6PGQ/

I've used the CMT before, it's a good bit.

I have to disagree. Pls see my thread comparing the two types of bits. That straight bit ain't for plunging.
My first woodworking experience was as a Cro-Magnon. As a six year old, I took silver maple branches, stripped the bark, and washed the sap off the branches. While they were still wet, I would bend them into the shape of a bow, tie them in place, and air dried them for a few days. Then, with my newly made arsenal, I launched homemade arrows at squirrels with miserable accuracy.

Offline Tom Bellemare

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Re: 20mm Router Bits
« Reply #14 on: February 14, 2013, 12:44 PM »
Is the 10mm shaft going to fit in the US OF1400?

Those CMT bits are meant for boring machines.


Quote
Is it really wise to use a forstner bit in a plunge router? I would think the rotation speed of the router is much to high for a forstner bit?

The Festool bit I mentioned and the CMT bit that Michael linked to are both hinge boring bits. The Festool bit is for routers and has an 8 mm shaft. The CMT bit is meant for boring machines and has a 10 mm shaft.


Tom



Offline Michael Kellough

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Re: 20mm Router Bits
« Reply #15 on: February 14, 2013, 01:09 PM »
Oops... the 10mm shaft spec slipped by me.

I don't have that CMT bit but I do have the Festool bit and while it does bore a clean hole quickly the hole is about .2mm oversize so things like Qwas dogs fit a little loose. But, it's made for drilling holes that cast hardware will be inserted into and for for that purpose slightly over-sized is a good thing.

Offline hrrb

  • Posts: 187
Re: 20mm Router Bits
« Reply #16 on: February 14, 2013, 06:26 PM »
Is the 10mm shaft going to fit in the US OF1400?

Those CMT bits are meant for boring machines.


Quote
Is it really wise to use a forstner bit in a plunge router? I would think the rotation speed of the router is much to high for a forstner bit?

The Festool bit I mentioned and the CMT bit that Michael linked to are both hinge boring bits. The Festool bit is for routers and has an 8 mm shaft. The CMT bit is meant for boring machines and has a 10 mm shaft.

Tom


Well...please notice that Michael and I are not referring to the same CMT part no. The one I'm referring to is a drill/router bit, part no. 392.200.11. According to the CMT catalogue I'm holding in my hand it's a boring bit for hand held drills AND ROUTERS and the shaft is 8 mm.

But it is correct, that Michael is referring to a boring bit part no. 317.200.11
...well according to his link it's a boring bit. But apart from the shaft diameter I don't know the difference.

But I can tell you that I have a lot of both Festool an CMT bits and I consider CMT to be high quality bits.

Kind regards
Henrik


Offline Michael Kellough

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Re: 20mm Router Bits
« Reply #17 on: February 14, 2013, 10:34 PM »
Henrik,

I searched the 392.200.11 number and only came up with the boring bit (if I remember correctly).

Tom is a CMT dealer, I wonder if he can get the 392 router bit and how the price compares to the Festool bit.

Offline hrrb

  • Posts: 187
Re: 20mm Router Bits
« Reply #18 on: February 15, 2013, 12:44 AM »
Henrik,

I searched the 392.200.11 number and only came up with the boring bit (if I remember correctly).

Tom is a CMT dealer, I wonder if he can get the 392 router bit and how the price compares to the Festool bit.

...here's a snapshot from an online catalogue.
82576-0
But I don't know if it's available in NA. Maybe Tom can answer.  ???

Kind regards
Henrik

Offline Tom Bellemare

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Re: 20mm Router Bits
« Reply #19 on: February 15, 2013, 01:19 PM »
The 392 series bits are NAINA. CMT doesn't offer 8 mm shaft bits here normally.


Tom

Offline fritter63

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Re: 20mm Router Bits
« Reply #20 on: February 15, 2013, 09:01 PM »
Here's one of my new box beams made with the festool 20 mm bit (and lots of 4 mm dominoes!)



I really like those box beams. Did you cover them anywhere else in the forum or this there first appearance?

James

I showed a pic or two my thread about comparing the 20 mm straight bit with the festool bit. Search for "20mm" may be a space in there). On my iPhone right now.

I didn't think there was much interest in a build thread but I can post one if you want.

Offline Eoghan Brown

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Re: 20mm Router Bits
« Reply #21 on: February 20, 2013, 08:22 PM »
Thanks All,

I am planning on building one of Ron Paulks work benches. Now that I have this last piece of the puzzle. If the weather holds out I'll start cracking at it.

Eoghan
TS55, CT36, Rotex 90 & 150, LR32, OF1400, Domino 500, MFX700, MFT.
30 years residential construction, 25 years of residential deconstruction, Professional Fire Service.

Offline bwiele

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Re: 20mm Router Bits
« Reply #22 on: February 20, 2013, 09:05 PM »
Sorry for being naive, but what generally are those box beams used for?

Offline fritter63

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Re: 20mm Router Bits
« Reply #23 on: February 20, 2013, 10:04 PM »
Sorry for being naive, but what generally are those box beams used for?

They're my workbench. Think of it as an MFT/3 that can split in the middle.

Here is another pick of them in use making a 4 foot wide garden gate:


Offline fritter63

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Re: 20mm Router Bits
« Reply #24 on: February 20, 2013, 10:06 PM »
Better pic:


Offline Wooden Skye

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Re: 20mm Router Bits
« Reply #25 on: February 20, 2013, 11:09 PM »
Fritter63

Are your beams torsion box?  It is one of the options I am thinking about as an assembly table.
Bryan

TS 55, (2) 1400 Guide Rails, 1900 Guide Rail, MFT/3, Domino ETS 150/3, RO 90, CT 26, OF1400, RO 150. RTS 400, LR 32 set, PS300 jigsaw, 3 abrasive systainers, (2) sys toolbox, (2) sys mini, clamps and other accesories

Offline fritter63

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Re: 20mm Router Bits
« Reply #26 on: February 20, 2013, 11:17 PM »
Fritter63

Are your beams torsion box?  It is one of the options I am thinking about as an assembly table.

Almost. I left the bottom skin off so I can  secure the clamping elements from underneath. They will twist a little if unsupported:


Offline Pizza Steve

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Re: 20mm Router Bits
« Reply #27 on: December 20, 2014, 09:19 PM »
I don't have that CMT bit but I do have the Festool bit and while it does bore a clean hole quickly the hole is about .2mm oversize so things like Qwas dogs fit a little loose. But, it's made for drilling holes that cast hardware will be inserted into and for for that purpose slightly over-sized is a good thing.

I realize this thread is a bit old, but I have the same question: as Michael stated above, if the Festool 491072 produces a larger hole (.2mm) than the standard MFT holes, is there an undersized 20mm bit that produces the same MFT-sized holes?

Or is this something only a CNC machine can cut?


Thanks!
Steve

Offline Pizza Steve

  • Posts: 167
Re: 20mm Router Bits
« Reply #28 on: December 20, 2014, 09:23 PM »
The 392 series bits are NAINA. CMT doesn't offer 8 mm shaft bits here normally.

Also, I don't know if CMT's distribution model has changed in the past 18 months, but the CMT 392.200.11 is now available in NA directly thru Amazon: http://amzn.com/B00EV52X64.

Offline JBird

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Re: 20mm Router Bits
« Reply #29 on: January 24, 2015, 03:44 PM »
I realize this thread is a bit old, but I have the same question: as Michael stated above, if the Festool 491072 produces a larger hole (.2mm) than the standard MFT holes, is there an undersized 20mm bit that produces the same MFT-sized holes?

Did you ever find a 20mm bit that drills a more proper 20mm hole? Did you try the CMT you linked to?

Offline JBird

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Re: 20mm Router Bits
« Reply #30 on: January 30, 2015, 02:37 AM »
I realize this thread is a bit old, but I have the same question: as Michael stated above, if the Festool 491072 produces a larger hole (.2mm) than the standard MFT holes, is there an undersized 20mm bit that produces the same MFT-sized holes?

Did you ever find a 20mm bit that drills a more proper 20mm hole? Did you try the CMT you linked to?

I guess I shall answer my own question for the record. I have tried the CMT bit and the holes are also about 20.2mm. They feel noticeably more loose than the MFT holes. Too loose in my opinion.

Festool USA does not pre-approve the contents of this website nor endorse the application or use of any Festool product in any way other than in the manner described in the Festool Instruction Manual. To reduce the risk of serious injury and/or damage to your Festool product, always read, understand and follow all warnings and instructions in your Festool product's Instruction Manual. Although Festool strives for accuracy in the website material, the website may contain inaccuracies. Festool makes no representations about the accuracy, reliability, completeness or timeliness of the material on this website or about the results to be obtained from using the website. Festool and its affiliates cannot be responsible for improper postings or your reliance on the website's material. Your use of any material contained on this website is entirely at your own risk. The content contained on this site is provided for informational purposes only and does not constitute professional advice.


Offline Pizza Steve

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Re: 20mm Router Bits
« Reply #31 on: January 30, 2015, 07:11 AM »
Thank you for testing it and reporting back!  I hadn't tried out either the CMT or Festool bit yet.

Offline emlclcy

  • Posts: 27
Re: 20mm Router Bits
« Reply #32 on: February 17, 2021, 01:29 PM »
Thank you for testing it and reporting back!  I hadn't tried out either the CMT or Festool bit yet.

hi, is there an update to this as i want to make my own mft style bench.
which is the most accurate 20mm cutter?
regards
carl (uk)

Offline guybo

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Re: 20mm Router Bits
« Reply #33 on: February 17, 2021, 02:21 PM »
Hi, I have had good success with festool 490972, I have parf and qwas dogs. guy

Offline emlclcy

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Re: 20mm Router Bits
« Reply #34 on: February 17, 2021, 04:45 PM »
Hi, I have had good success with festool 490972, I have parf and qwas dogs. guy
is this ok to plunge? it looks like an edge trimming bit??

Offline guybo

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Re: 20mm Router Bits
« Reply #35 on: February 17, 2021, 05:44 PM »
Hi again, yes plunge smooth and easy on speed 6, I use a 1010 with the lr32 in mdf. I also use a TSO rail square to make it fast.Happy plunging. guy

Offline Coen

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Re: 20mm Router Bits
« Reply #36 on: February 17, 2021, 06:16 PM »
Hi, I have had good success with festool 490972, I have parf and qwas dogs. guy
is this ok to plunge? it looks like an edge trimming bit??

It has a cutting edge on it's 'head' too. However, it's still not the use the bit was primarily designed for. I would use the earlier mentioned Festool 491072

Offline Crazyraceguy

  • Posts: 226
Re: 20mm Router Bits
« Reply #37 on: February 17, 2021, 06:58 PM »
I did my first MFT style assembly table with a Freud 20mm router bit, but it was a multi-step process.
I had a 1/4" mdf template made on the CNC. It was a full 4' x 8' sheet, so there was no moving of the template during use. The template had 1" holes, so I could do it with a bushing. I did it with two different bits, first with a 1/2" shank, 1/2" diameter plunge bit. Then a second time with the Freud 20mm bit, which was only 1/4" shank.
This was all done to a 1 1/8" thick sheet of mdf, not thinking about the clamps. It worked fine with the dogs, but the clamps wouldn't go through. Then I had to turn the sheet over and use a 45 degree chamfer bit to relieve the back, so the clamps would fit too.
All in all, it took 3 cuts for each of 275 holes. The Dewalt DW618 router that I had at the time had the best dust collection ability of anything I owned, so it did the job. I took me two evenings, after work, but it was the only one I had ever seen at that time (2014)
The one I have now was done with the Parf guide system. It has even more holes, but was done with more normal 3/4" mdf. I actually liked the thicker sheet better, but it's not worth the work it took.
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Offline rst

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Re: 20mm Router Bits
« Reply #38 on: February 17, 2021, 07:13 PM »
I've made multiple tops with the Festool 20mm bit 491072, including a 64" x 102" split cutting/assembly top...probably bored 500-600 holes using the LR-32 setup and 1400...dogs fit perfectly.

Offline Imemiter

  • Posts: 138
Re: 20mm Router Bits
« Reply #39 on: February 17, 2021, 08:45 PM »
I found a HSS spiral bit 490951 that Amazon would get me from AU. Also using it with a 1010 on an LR32 with a rail square. The holes measure a tight 19.8mm. The only Festool dogs I've got are the clamping elements and they snap right in. 
CSX, TID 18, HKC 55, OSC 18, OF 1010, Domino XL, DTS 400, ETS 125, RAS 115, LR32, CTSys, CTMidi, CT-VA-20

Offline emlclcy

  • Posts: 27
Re: 20mm Router Bits
« Reply #40 on: February 18, 2021, 04:08 AM »
I found a HSS spiral bit 490951 that Amazon would get me from AU. Also using it with a 1010 on an LR32 with a rail square. The holes measure a tight 19.8mm. The only Festool dogs I've got are the clamping elements and they snap right in.

i wonder what its life span is being HSS?

Online Cheese

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Re: 20mm Router Bits
« Reply #41 on: February 18, 2021, 09:46 AM »
Like rst, I've used the Festool 491072. It has carbide cutters and produces a clean hole. The cutting geometry is specifically designed to be used in a router at 10,000 to 14,000 rpm.

Offline Imemiter

  • Posts: 138
Re: 20mm Router Bits
« Reply #42 on: February 18, 2021, 12:13 PM »

i wonder what its life span is being HSS?

Seems to be doing okay after 60ish holes in 3/4 MDO. But I don't expect it to last like carbide.
« Last Edit: February 18, 2021, 12:42 PM by Imemiter »
CSX, TID 18, HKC 55, OSC 18, OF 1010, Domino XL, DTS 400, ETS 125, RAS 115, LR32, CTSys, CTMidi, CT-VA-20

Offline RobS888

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Re: 20mm Router Bits
« Reply #43 on: February 18, 2021, 03:34 PM »
I used this Bosch, some burning of the MDF, but the bit was ok.

https://smile.amazon.com/gp/product/B000AS327K/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1