Question about Dremel 10.8-volt Lithium-ion Cordless Rotary Tool

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Cant get the collet loose. The lock button pos up the moment i increase tension.

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Try holding the buttion down with a pair of channel locks till lose

Posted on Oct 24, 2010

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1 Answer

How do you put a router bit in a Makita router model 3612BR


Inserting the bit should be the same on all versions of the Makita 3612 router. It does depend on the bit size. Press the shaft lock to keep the shaft from turning. I think the lock is close to the handle on one side of the router when you hold the router with the bit/collet up. For small shaft bits, insert the appropriate collet sleeve into the collet cone. Then insert the bit completely into the sleeve. For larger shaft bits, insert the bit completely into the cone. Use the wrench to tighten the collet nut securely. Unlock the shaft lock. Do not over-tighten or leave the bit loose in the collet cone/sleeve. Over-tightening can break the collet cone. Leaving it loose can result in the bit flying out of the collet cone. Either way, injuries can occur. To remove a bit, loosen the collet nut and then remove the bit (or bit and collet sleeve).

The manual is available on the product page: https://www.makitatools.com/products/details/3612 . The direct link to the manual is https://cdn.makitatools.com/apps/cms/doc/prod/361/df12a409-2bd0-48c3-aa38-d635a480a76e_3612_IM.pdf . See page 8.

I hope this helps.

Cindy Wells

Jul 11, 2017 | Makita Drills

1 Answer

Trying to change drill bit on Craftsman Rotary Variable speed drill


Lock the spindle (small chrome button near the tool's nose or lever at the power switch). You'll probably need to rotate the spindle by hand as much as one full turn as you do this, to get the lock to drop into place.

With the spindle locked, use your supplied wrench to turn the collet nut counter-clockwise (as seen from the cutter end) about one full turn. The collet should now be plenty loose enough to release the cutter / wheel / drill.

Mar 26, 2014 | Craftsman Variable Speed Rotary Tool Kit

1 Answer

How do I change a router bit on a craftsman router model number 315.174700


lock the collet by turning the on-off switch to off, push the button under the on-off switch to lock the collet then use the supplied wrench to loosen the collet.

Jan 19, 2013 | Craftsman 315.174710 Routers

1 Answer

How to replace the spline and coupling


The coupler nut tends to be screwwed on so tight that even when undone, the collet has bit into the soft shaft of the tool. Holding the rotation lock button in, grab the shank with some strong needle nose pliers and twist the shaft loose or pull it off completely with the nut and then seperate the nut from the shank when it is out of the Dremel Tool. A lot of machine tools are tightened too much, which makes the shanks get all damaged so use only the required tension on that collet nut.

Mar 28, 2011 | Dremel Variable - Speed Multipro Rotary...

1 Answer

Aguired a black and decker model 7600 router tool. Did not come with instruction manual. I cannot determine how to change the bits.


They don't have an instruction manual online at the Black and Decker support site, but if you want a look at the exploded diagram, it's here.

Basically there's a collet nut that gets tightened down to hold the bit in place. You've got to loosen it up and you'll be able to pop bits in and out. You've got to have some way to lock the shaft while you're doing this though.

Most modern routers have a spring loaded shaft lock button. While you're holding it in, start turning the collet. When the shaft gets to the point where there's a little hole for the spring lock, you'll probably hear a little click, and the shaft will be locked so you can loosen the collet. If you take your finger off the shaft lock, it pops right back out again so hold it down while you're loosening and tightening.

If you don't see a shaft lock button, you may have a second hex nut at the base and with two wrenches, you can hold the hex nut and turn the collet loose that way.

If this answer was helpful, please give it a vote. Thanks.

Jun 15, 2010 | Black & Decker Tools & Hardware - Others

3 Answers

I have a Dremel 300 and the shaft lock assembly isn't working to hold the shaft so I can get the collet nut loose. When I try to get the collet nut loose while holding the button of the shaft lock the...


The "nub" on the shaft lock assembly (internal) has worn down and the assembly needs to be replaced.

If you feel competent to open your Dremel yourself (and it's not on warranty) then order the shaft lock assembly from Dremel (early 2011 price: $1.25, not sure how much postage & handling might be). After opening the tool you will find a metal ring and a small piece (the lock) which it holds in place around the shaft where the lock button is located. Remove the old pieces and replace with the new ones and reassemble the tool.

Otherwise you can send the tool to Dremel to be fixed.

Feb 16, 2010 | Dremel 300-N/55 300 Series Tool Kit

2 Answers

How do i change the bit on router?


On my older Sears router there is a lever on the base near the collet nut that you slide to engage the motor shaft to lock the motor shaft for bit changes. On newer models you may have a button or different mechanism to lock the shaft. After the shaft is locked you can use a small wrench to loosen the collet nut, usually by turning it counter-clockwise (viewed from the base). Once the nut is loose the bit should slide out (sometimes the bit is stuck in the collet and the nut may need to come all the way off to get them apart). Just replace the bit with a new bit with the same shaft diameter, tighten the nut, and you are set. If the new bit has a different shaft diameter than the old bit you may need to change the collet also (in general, different collets are used with different bit shaft diameters).

Oct 03, 2009 | Craftsman Tools & Hardware - Others

2 Answers

Craftsman rotary tool doesn't lock down on the bits.


the collet is either the wrong size for the shaft on the attachment or is missing alltogether

Jul 04, 2009 | Dremel Variable - Speed Multipro Rotary...

1 Answer

How do you fit 6mm collet cone on new produce


You have, I presume, already locked the spindle and loosened the collet nut with the wrench, have you not?
Once the nut is loose, you should be able to remove it by spinning it off the threads by hand. Then insert the 6 mm collet cone into the collet,
carefully thread the collet nut back onto the collet, and tighten it with the bit in place.
Sometimes bits are a snug fit, especially into a new collet. If you have some fin sandpaper you can gently chamfer the very end of the bit where you first insert it into the collet, and this may help to insert it. If you have to, push a bit.
I have noticed that some companies tend to mill the shafts of their bits a little too close to the exact tolerance, or even oversize them slightly, and this can cause frustration when inserting their bits. In exceptional circumstances, I have resorted to polishing a couple of small bit shafts with very fine (600 grit or so) emory cloth, just to allow the bit to enter the collet. I would not recommend this with a new router collet, unless you have checked the bit with a micrometer and it is oversize. Odds are you just need to break things in a little.
The force need not be brutish, but you may need to use some force, yes.

If I've managed to answer your question or solve a problem, please take a moment to kindly rate this post....thanks!

Dec 29, 2008 | Makita 3612C Router

1 Answer

Dremel shaft lock spinning


Trying to fix a similar issue. The pin that gets pushed in by the button (and returned by the spring) seems to be fine. The hole in the rotating shaft that the pin fits into, however, is in the wrong place, so the pin never goes into the hole! All I need to do is somehow pull the whole front part of the shaft out about 1/16th of an inch, and it'd be fine. I just can't seem to budge it though. Any tricks, anyone?

Nov 13, 2008 | Dremel 300-N/55 300 Series Tool Kit

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