Help - Adapting Dremel Keyless Chuck to Tamiya Drill?

[cbroughton67]

I use a Tamiya "Electric Handy Drill" to drill holes for detailing. I love it - so much faster and easier than using a pin vise. I've been using Dremel collets (smallest size) to hold the bits. Sometimes, it'll grip a #80 bit, sometimes it won't. So, I've been looking for a mini chuck adapter with a 1/8" shaft to use in the drill. Most of what I've tried is junk - off-centered, won't grip small bits, etc. A Dremel keyless chuck would be ideal (I've used it with #80 bits in a Dremel tool and drill press setup), but it mounts differently than the Tamiya setup. I think it would work if I could somehow mount the Dremel chuck on a 1/8" shaft, then use a 1/8" collet to hold the chuck in the Tamiya drill.


The question is, how do I mount the Dremel chuck to a 1/8" shaft? Ideas, anyone? Baring that, does anyone know of a QUALITY mini chuck adapter with a 1/8" shaft and > 0.3mm jaw closure?


Thanks,
Chris

[sp org div]

Chris
 I dont know of an adapter like that either; but what about using drill bits that have a larger shank diameter in that drill?
McMaster-Carr has a line of cobalt bits with .0394" shanks, that range from .0020-.0197".
Only negative is a #80 runs about $10 (8904A42), but the important part is you can choose even smaller sized bits where detail parts wont be swimming in an oversized hole...

Jeff
http://espeeoregondivision.blogspot.com/?m=0

[Rasputen]

What does the Dremel keyless chuck look like???? 

[peteski]

What does the Dremel keyless chuck look like????

The one I have looks like this:
It screws onto the Dremel motor shaft.


But I found it very inaccurate (the center runoff is way too much for what I do) so it sits in my drawer while I use standard Dremel collets.



I also see similar chucks available which include a shaft. That might be useful for the conversion.
Click to see a photo.
http://alexnld.com/wp-content/uploads/2016/08/235mm-Shank-Electric-Grinder-Keyless-Drill-Chuck-Adapter-for-Dremel-Rotary-Tool-0334mm-Silver_nologo_600x600.jpeg

All I did was google for "dremel keyless chuck".

[narrowminded]

Look at carbide circuit board drills.  All 1/8" shanks and available in about any miniature size you can imagine.  Also, not very expensive.  In the collet they will run as true as the tool is capable.  I have purchased satisfactorily from this vendor. http://stores.ebay.com/drillbitsunlimited/

[peteski]

Look at carbide circuit board drills.  All 1/8" shanks and available in about any miniature size you can imagine.  Also, not very expensive.  In the collet they will run as true as the tool is capable.  I have purchased satisfactorily from this vendor. http://stores.ebay.com/drillbitsunlimited/

I've also been using those for years. The problem is that very small bits (like #80 or smaller) are extremely fragile and will break very easily when used in handheld drills.  HSS bits are much more forgiving (they can flex instead of breaking).

[JanesCustomTrain]

Look at carbide circuit board drills.  All 1/8" shanks and available in about any miniature size you can imagine.  Also, not very expensive.  In the collet they will run as true as the tool is capable.  I have purchased satisfactorily from this vendor. http://stores.ebay.com/drillbitsunlimited/

If you have time to wait you can get them MUCH cheaper from China. I use them by hand as they are. As Pete mentioned already, they will not last long in a hand held drill.

http://www.ebay.com/itm/10Pcs-1-8-Shank-Spiral-Flute-Tungsten-Carbide-Micro-PCB-Drill-Bit-0-2-0-9mm-Tip/262902302178?ssPageName=STRK%3AMEBIDX%3AIT&var=561901700427&_trksid=p2055119.m1438.l2649

http://www.ebay.com/itm/Hot-10X-0-1-1-4mm-PCB-Print-Circuit-Board-Tungsten-Carbide-Micro-Drill-Bits-Box/182474801177?ssPageName=STRK%3AMEBIDX%3AIT&var=485048894469&_trksid=p2055119.m1438.l2649

Yes, price is for 10 drill bits including shipping.

Jane