Metric bits and guide bushings - Router Forums
View Poll Results: Metric bits and guide bushings in North America
I would like the high quality American made metric router bits. 73 58.87%
I would like the metric Trend UniBase/guide bushings. 33 26.61%
I would like the metric Oak Park/Lee Valley style guide bushings. 51 41.13%
I would like these items available in Canada. 26 20.97%
I have no interest in these metric items. 46 37.10%
Multiple Choice Poll. Voters: 124. You may not vote on this poll

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post #1 of 30 (permalink) Old 04-28-2012, 01:34 AM Thread Starter
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Default Metric bits and guide bushings

For about 6 years now Harry has been expounding the virtues of using metric bits and guide bushings. There is no question the math is easier for figuring offsets. I have been in contact with manufacturers about making metric bits and guide bushings available in the USA. What we need is actual numbers of how many people are willing to purchase these items. Please consider these options and vote for your choices.

If available would you like to purchase high quality American made metric router bits? These would be available in 6, 10 and 12 mm with 1/2" shanks which will allow you to perform many of the projects exactly the way Harry does.

To make use of these metric bits you will also need metric guide bushings. I have two options for you to consider:

1. Trend Euro style guide bushings in heavy duty plastic or steel which require the Trend UniBase for mounting to your router. These attach with two screws.

2. Large Oak Park/Lee Valley style metric brass guide bushings with a threaded base and brass ring nut. These require a 1-1/2" through hole with a 1-3/4" countersink. They attach like PC style guide bushings but in a larger hole which provides more clearance.

You can select multiple choices in this poll.

Mike
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Last edited by Mike; 04-30-2012 at 09:42 AM.
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post #2 of 30 (permalink) Old 04-28-2012, 09:07 AM
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You should have made this a multiple choice, as I would agree to 1,3, and 4. Lee valley sells an adapter for 8mm, but not any 8mm bits as far as I can see. I am comfortable with both metric and imperial, although I prefer imperial for woodworking.

Cheers,
Roger


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post #3 of 30 (permalink) Old 04-28-2012, 01:35 PM
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Hmm...why not go fully for the metric system ? It is so much easer and you are used to it in your coin system already. Decimals instead of fractions. We have calibrators wich divid 1 inch into 1/10 and you also use the term 0,0001 of an inch, but what is that exact. What is 63/64 ? No 1,0 or 0,1 or 0,01 or 0,001 in 'mm' or 'cm' or 'm' much better.

I must admit that we old timers still use the expresion 2"x4" when it comes to timber but as we in all buildings to day must use adjusted timber it is really 48x98 mm or 4,8x9,8 cm.
Also the old scandinavien inch was not exact the imperial inch.

regards Leif
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post #4 of 30 (permalink) Old 04-28-2012, 03:28 PM Thread Starter
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Lief, This gets debated from time to time with no resolution. It is because of momentum. The USA is gradually shifting to metric; auto's, packaged food and beverages have mostly made the switch over. The shear volumn of tools, cutters and fasteners in use makes this difficult. It will happen eventually.

This poll is to convince companies that there are enough people ready to use these metric bits and guide bushings so they will begin production.

Mike
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post #5 of 30 (permalink) Old 04-28-2012, 05:12 PM
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Default Elaire Corp: Porter-Cable 7mm, 8mm, and 10mm Collets

Quote:
Originally Posted by The Warthog View Post
You should have made this a multiple choice, as I would agree to 1,3, and 4. Lee valley sells an adapter for 8mm, but not any 8mm bits as far as I can see. I am comfortable with both metric and imperial, although I prefer imperial for woodworking.
Hi Roger,
=
Using metric drill bits, I have been drilling my pen blanks with a "MLCS Powerlift / Porter-Cable / RBI" Router table, which I have previously posted on this forum as an x-y-z router table. http://www.routerforums.com/table-mo...s-igaging.html

I am using Elaire Corporation Porter Cable 7mm, 8mm, and 10mm Collets.
One can order that "pen-making" collet set as a new item PC-SET3 via PayPal.
Three Collet Series are available; Bosch, Porter Cable, and Milwaukee. (Also 6mm and 12mm)
Source: The Elaire Corporation - Precision USA made collets, holders, air tool components (a USA company). Contact: Mark Neeley
=
Metric Drill Bits are available from:
http://www.Rockler.com
and
http://www.pennstateind.com/store/drill-bits.html
=
Mark

Last edited by allbarknobite; 04-29-2012 at 03:12 AM. Reason: url added
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post #6 of 30 (permalink) Old 04-28-2012, 07:12 PM
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Exclamation

To be a valid result, only those members who reside in US or Canada should respond...

We in Australia have no problem whatsoever with the status quo.

James
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post #7 of 30 (permalink) Old 04-28-2012, 08:59 PM
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For the time being we are going to be stuck at times to use imperial because all of our materials are sized in imperial. When I can, I would much prefer using metric.

Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
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post #8 of 30 (permalink) Old 04-29-2012, 03:52 AM
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Hi Mike

Because I'm in Europe, and we are all metric, I'm obviously not going to vote on this, but I'd like to pass a few comments if I may.....

Quote:
Originally Posted by Mike View Post
To make use of these metric bits you will also need metric guide bushings. I have two options for you to consider:

1. Trend Euro style guide bushings in heavy duty plastic or steel which require the Trend UniBase for mounting to your router. These attach with two screws.
Many deWalt routers already support this style of guide bush directly in the base without the need of an adaptor plate, which is in fact the old Elu MOF96 standard:



The routers which take this type of bushing includes the deWalt DW613/DW614/DW615, Trend T5 and older 1/4in (8mm) Elus. Trend's range includes 10, 11, 12, 14, 16, 17, 18, 20, 22, 24, 26, 27, 28, 30, 32 and 40mm (in metric) as well as a number of inch equivalent sizes including 7.93mm (5/16in), 9.5mm (3/8in), 15.8mm (5/8in), 22.2mm (7/8in), 25.4mm (1in) and 31.8mm (1-1/4in). This compares very favourably against deWalt's own range of 17, 24, 27 and 30mm. I believe that Trend do stock the plastic metric guide bush sets in the USA (10 to 32mm in 2mm increments - and quite reasonably priced here if you take into account that price including 20% sales tax), but not the steel ones. These plastic bushings also come in a selection of inch sizes, too.

The DeWalt DW624/DW625 and Trend T10/T11 (in Europe) are supplied with a conversion plate (#DE625T10 in the UK) to allow the use of the Elu/Trend type of bush directly on the router without the need for an adaptor plate:



Trend also sell a version of this.

deWalt DW621/DW622/DW626 routers work with a different (cast) guide bush system directkly in the base (without adfaptor plate), like these:



In the EU we can obtain this type in 14, 16, 17, 18, 20, 24, 26, 27, 30 and 40mm sizes from DW for the DW621/622/262 routers. They are not compatible with the Elu/Trend-style guide bush, but being of larger diameter and having a somewhat thicker mounting ring (base ring) it should be possible to machine-up a simple adaptor plate to sit in the base of a DW621/622/626 to take the Elu/Trend-type guide bush

Festool and Bosch also have their own ranges of metric guide bushes which work directly in the base of the router (Festool actually have three ranges!). Both manufacturers sell 17, 24, 27 and 30mm bushes for all of their plunge routers. Makita seem to have have 17, 30 and (some) 40mm guide bushes available for their routers, but the guide bushes are apparently incompatible with other makes as far as I can tell

This is a brief synopsis of what we can get here "off the shelf" in Europe. Good luck in persuing manufacturers to manufacture/distribute the same in the USA

Regards

Phil

Last edited by Phil P; 04-30-2012 at 12:49 PM. Reason: Added more info about Trend guide bushes available in the USA
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post #9 of 30 (permalink) Old 04-29-2012, 09:12 AM
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Just to clarify my position, by having a mixture of metric and Imperial bits and guides I can mix and match which allows me to achieve very accurate off-sets when the project requires it. Every member who wishes to become an experienced routologist would be advised to add at least a 6mm, 10mm and 12mm straight bit to their collection plus, where the router will accept, a 40mm, 30mm and 20mm or 25mm template guide.

Harry



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post #10 of 30 (permalink) Old 04-29-2012, 09:50 AM Thread Starter
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Phil, the problem we face in the USA is NOBODY will provide their metric guide bushings they are already selling elsewhere in the world to us. Trend-USA lists the bushings and UniBase in their catalog but nobody is willing to stock or distribute them; this is the path of least resistance. This is also the easiest way to provide the metric bushings to work with all routers. Bosch is listening on this and may provide their metric bushings here but that will not benefit everyone. DeWalt listens to nobody. There are a good number of Router Workshop tables in use in the USA and Canada which would benefit from the brass bushings; Lee Valley also makes use of these larger size bushings so there is an instant market plus making a replacement sub base plate is easy. I have a manufacturer interested if we can show good numbers supporting this in the poll.

Mike
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