About the router bits adapter. - Router Forums
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post #1 of 10 (permalink) Old 04-13-2015, 03:42 PM Thread Starter
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Default About the router bits adapter.

Hi, I was wondering, a week ago I went to a shop to buy some bits, and it seems like my router bit adapter is not very common, it looks like this:

http://imgur.com/OBJ6kDz

Are all like that?, or each router has a different adapter for the bits?.

Mine brought 2, one is exactly 1/4", and the other one is 8mm (1/3" aprox).
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post #2 of 10 (permalink) Old 04-13-2015, 09:52 PM
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Many are just like that.

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 #3 of 10 (permalink) Old 04-14-2015, 09:33 AM
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Make certain the adapter is for the router to be used. For example, one for a PC may not work for a DEWALT.

Jon
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post #4 of 10 (permalink) Old 04-14-2015, 09:58 AM
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I have a couple that look just like that.

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post #5 of 10 (permalink) Old 04-14-2015, 10:05 AM
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Yes, it's called a collet here in the states. I doubt seriously that they interchange between router brands as has been mentioned.
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post #6 of 10 (permalink) Old 04-15-2015, 02:02 PM Thread Starter
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I see, so in other words, there is not such thing as a universal collet, and different brands have different collets. Another thing, are there collets that work as power drill chucks?, you know, collets where I can put router bits from a variety of shanks?.
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post #7 of 10 (permalink) Old 04-15-2015, 02:44 PM
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Each manufacturer designs the collet (thread, taper, etc.) to fit the motor shaft securely, so there is no "universal" collet.

A drill chuck design cannot hold a bit securely enough to be safe at router speeds. The collet needs to hold the shaft with as much surface area as possible.

While almost every collet (and bit shaft diameter) in the US is either 1/4" or 1/2", for other sizes you can buy a variety of collet adapter inserts such as this:
The outer diameter is usually 1/2", and the inner diameter is the same as your bit shaft.
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post #8 of 10 (permalink) Old 04-16-2015, 12:50 AM
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Quote:
Originally Posted by Artemix View Post
I see, so in other words, there is not such thing as a universal collet, and different brands have different collets. Another thing, are there collets that work as power drill chucks?, you know, collets where I can put router bits from a variety of shanks?.
Drills apply pressure downwards, and turn at around 1500 rpm usually.
routers spin at anything up to 30,000 rpm (thats 20 times faster!) and the load is applied sideways as the wood is cut. Any type of drill chuck would come undone at that speed at sideways load. The result of that bit coming out at that speed could be lethal.

Most router bits are either 1/4 inch or 1/2 inch. But in metric countries there are also 8mm and even 12mm bits. Each would need its own collet (adapter) to be safe.

(1/2" translates to 12.5 mm, so a 12 mm bit would be loose in a half inch collet.)
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post #9 of 10 (permalink) Old 04-16-2015, 10:43 AM
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One of our dearly departed members (passed away) used to use a router to drill with but he used an external speed control he said and figured that he might only be spinning at 1500 rpm.

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 #10 of 10 (permalink) Old 04-16-2015, 03:10 PM
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The easiest approach is to go for a Musclechuck and a 1/4" adapter from them.

Jon
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