20mm Boring Bit - 10mm Shank

[krudawg]

I'm wanting to install the Benchdog Quad Hinge kit on my MFT and for the life of me can't find a 20mm boring bit with a 1/2" shank - All I can find is one with a 10mm shank (Which will not tighten up in my OF 1400). I looked into buying a 10mm collet and came across one for $120.  I also found a 1/2" to 10mm reducer that will make it work but I'm not sure it will work.  Anyone know where I can get a boring bit with a 1/2" shank?

 

[Crazyraceguy]

10mm? that's a weirdo.
I think the Festool one has an 8mm shank, but availability might be an issue.
Freud makes a 20mm plunge-cut router bit, but it's only 1/4" shank.

 

[guybo]

Hi, your 1400 should have come with a 8mm collet and festool sells a 20mm 8mm shank boring bit #491072

 

[xedos]

10mm shank is common on industrial boring machines

Lots of choices for 20mm boring bits with 8mm shanks.  Festool's is the best I've tried , but CMT is almost as good at 1/4 the cost.

A reducing collar will be fine for making 4 holes.

 

[Cheese]

Actually Festool offers a 10 mm collet for the 1400 & 2200, P/N 494461.

However, I'd just go the 20 mm Festool cutter route that guybo suggested. I've used that cutter in a 1400 to create a MFT top from 18 mm Baltic birch ply. Just slow it down a little bit and it doesn't even burn the ply.

 

[Bob D.]

Maybe I don't understand what you need to do but if its only four holes do you have to do this with a router?

Maybe a 20mm Forstner bit and a simple drill guide make from a scrap of wood.

 

[Coen]

Huh, the normal bits from Festool have base cutter too?

Like 490971, 490972, 491093, 490951,

 

[luvmytoolz]

This ebay crowd has a bunch of collets for the Festool routers pretty cheap, check out the other sets for 10mm:
https://www.ebay.com.au/itm/254865127644

 

[Coen]

Why on earth would you buy a weird size collet just so you can buy the wrong bit??

I don't. That's why I only have the 8mm (OF-1010, 1400) and 12mm (OF-1400) ones. I once bought a 6mm router bit set without realizing it was 6mm and immediately returned it when I found out. No way I am buying a 6mm collet.

 

[Cheese]

Why on earth would you buy a weird size collet just so you can buy the wrong bit??

+1

Actually Festool offers a fairly nice selection of dowel & hinge boring bits for use with their routers with 8 mm shafts. Starting with the 3 mm D3, D5, D6, D8, D10, D15, D18, the previously mentioned D20, D25, D26, D30, D34 and finally the D35. That's a pretty nice spread for router usage. All would also be useable in the Shaper Origin.

 

[luvmytoolz]

Why on earth would you buy a weird size collet just so you can buy the wrong bit??

As I have CNC machines I have a huge amount of 6/8/10mm cutters, so a matching collet to suit the router is very advantageous for me!

If you didn't have any of those sizes, then yes it would make no sense to buy collets you can't use.

Conversely, if the cost of the oddball cutter was a fraction of the standard sized collet version, and you would see yourself requiring size variants and/or going through them at a rate, then it would make sense to buy the matching collet for the cost saving, which could end up being enormous.

 

[Crazyraceguy]

Why on earth would you buy a weird size collet just so you can buy the wrong bit??

As I have CNC machines I have a huge amount of 6/8/10mm cutters, so a matching collet to suit the router is very advantageous for me!

If you didn't have any of those sizes, then yes it would make no sense to buy collets you can't use.

Conversely, if the cost of the oddball cutter was a fraction of the standard sized collet version, and you would see yourself requiring size variants and/or going through them at a rate, then it would make sense to buy the matching collet for the cost saving, which could end up being enormous.

Yeah, once you are in the range of the ER type collets, the range of sizes grows a lot.
So for though, the router manufacturers have not embraced that because it is still profitable to have proprietary collets. They aren't voluntarily going to do us any favors.

 

[Bob D.]

You want to mount the hinge like is shown in this video correct?

It's two stinking 20mm holes, why make a project out of it.

 

[Francis_Beland]

Ah! That whole metric vs imperial complexity. For routers, it seems even tougher to find the good metric router bit or accessories. I have done a 3d printed MFT table drilling jig for the router on my Etsy shop and I had to include also a 3d printed Porter Cable style 30mm template guide because only Festool had one for their routers. For the other routers, it was almost impossible to find.

To answer your question, I'm pretty sure that this reducer from Amana will be perfect for the task:https://www.amazon.com/Amana-RB-120-Precision-Reducer-Overall/dp/B000P4QHN0/

 

[krudawg]

Thanks All for your input but I decided, for this project, I would get Amana Tools' reducer.  It's not ideal but will get me thru this simple  project.  I've got other projects needing my MFT to get started.  Again; I am extremely grateful for all the input I get from this board.

 

[xedos]

Why on earth would you buy a weird size collet just so you can buy the wrong bit??

As I have CNC machines I have a huge amount of 6/8/10mm cutters, so a matching collet to suit the router is very advantageous for me!

If you didn't have any of those sizes, then yes it would make no sense to buy collets you can't use.

Conversely, if the cost of the oddball cutter was a fraction of the standard sized collet version, and you would see yourself requiring size variants and/or going through them at a rate, then it would make sense to buy the matching collet for the cost saving, which could end up being enormous.

yea...............except kd is not running a production line; he's doing a one off project that needs 4 holes. [unsure]

 

[luvmytoolz]

Why on earth would you buy a weird size collet just so you can buy the wrong bit??

As I have CNC machines I have a huge amount of 6/8/10mm cutters, so a matching collet to suit the router is very advantageous for me!

If you didn't have any of those sizes, then yes it would make no sense to buy collets you can't use.

Conversely, if the cost of the oddball cutter was a fraction of the standard sized collet version, and you would see yourself requiring size variants and/or going through them at a rate, then it would make sense to buy the matching collet for the cost saving, which could end up being enormous.

yea...............except kd is not running a production line; he's doing a one off project that needs 4 holes. [unsure]

I must have missed the bit where he laid out his current and future needs aside from simply discussing this one project with no details as to further intent?

Again I refer to the last sentence in my paragraph above, you and I have no idea what he may or may not plan to do, so I phrased my reply accordingly. I don't run a production line either, but I do have an appreciation for simplifying and streamlining processes, and for me that usually means spending more on tools or tooling to cut down on time, cost and effort required. Not everyone operates that way though as I stated above.

 

[krudawg]

Thanks All for your input but I decided, for this project, I would get Amana Tools' reducer.  It's not ideal but will get me thru this simple  project.  I've got other projects needing my MFT to get started.  Again; I am extremely grateful for all the input I get from this board.

Followup - the Amana Tool 10mm reducer worked well.  NO issues removing the boring bit or the reducer

 

[Francis_Beland]

Thanks All for your input but I decided, for this project, I would get Amana Tools' reducer.  It's not ideal but will get me thru this simple  project.  I've got other projects needing my MFT to get started.  Again; I am extremely grateful for all the input I get from this board.

Followup - the Amana Tool 10mm reducer worked well.  NO issues removing the boring bit or the reducer

What boring bit did you use?

 

[krudawg]

Amana Tool boring bit