Mini-drill bits and special chuck??
forestgirl
| Posted in Power Tools and Machinery on
What type of chuck or adapter would you recommend for use with mini-drill bits (e.g., #73, #71).
forestgirl Another proud member of the “I Rocked With ToolDoc Club” …. :>) you can take the girl out of the forest, but you can’t take the forest out of the girl 😉
Replies
http://www.mscdirect.com/PDF.process?pdf=1626&Section_Id=1042&Keyword=Y
This has the kind of chuck that is the best for using these small drills. From here they seem quite expensive but it will give you a reference for what you may be looking for.
Tony
pin vise $3.79
by the way... congrats on your recent wedding.
http://www.mikeshobbytools.com/inventory/details.asp?ItemID=263
Edited 1/8/2004 5:10:24 PM ET by Rick at Arch. Timber and Millwork
What are you planning to drill holes in, there are a lot of options.
John W.
The link that Tony gave you shows what is called a "J.P. Stanley device". It has a 1/2" shank to fit in a drill press chuck. The round part is a nonrotating aluminum ring that you grab with 2 fingers and feed the drill by hand at high rpm and low pressure, (after locking the quill.) Mine has a keyless Albrect chuck that closes to zero. You have to buy the device plus the chuck. Most of the chucks shown in that link will not close to zero, but only to 1/32". Mine was $130.00 (mostly the chuck) about 20 yrs ago and worth every dime. I use it for drilling sterling, 14K and 18K, mostly making hinges and catches for jewelry. For wood, you can get by with a with a Dremel and the collet which closes to zero, but you'll break a lot of drills.
Edited 1/8/2004 8:31:14 PM ET by rob
ForestGirl, there are many std chucks that will work. Just make sure the catalog specificies it closes to 0.
One of the keys to making these small drills cut without breaking is to get them started in line with the spindle and to have them run true. If you are going to use a pin vise as another poster suggested, be careful of how you attach the pin vise to your machine spindle. Putting a pin vise into another drill chuck may be problematic; it may not run true.
If you need any advice on how to make small drills work, just holler. I've got lots a experience (both success and failures) drilling holes lots smaller than #73.
dave
That size hole is what is in lots of circuit boards. They make small hand-held drills just for holding them. Electronic supplies? I don't know of Dremel has a chuck for small drill bits or not??
http://www.mainelectronics.com/drills_bits.htm
http://store.yahoo.com/drillcity/14adcol.html
http://www.oselectronics.com/ose_p55.htm (bottom of page)
PlaneWood by Mike_in_Katy (maker of fine sawdust!)
PlaneWood
If these people don't have it you don't need. It's hard to imagine that you want to put power to hose size bits but Wholesale Tool will have the chucks or adaptors if you want to go that way. What ever you get make sure it closes to zero
http://www.wttool.com
Who ever invented work didn't know how to fish....
FG, General Tools makes a hand held swivel head pin vise tool, that looks like a jewelers screw driver.
It comes with two double collets, They are adjustable, so most any small drill bit will fit. I use mine often to start bigger holes accurately in wood and metal .
The tool fits in your hand and you twist the knurled shaft with two fingers. The top end has a rotating knob to place in your palm.
When I drill under power, I remove the palm knob and use the 'Business end' in a 3/8"" drill. (Try hobby shops, model makers buy them.)
If you check around, you'll find small 0-1/4" (Jacobs) chucks that can fit into most 3/8" chucks if you insert a 3/8-24 threaded bolt with it's head cut off (Hacksaw)
Whenever you toss out an old burnt out electric drill, remove the chuck you can use them for various little jobs (And they're free)
Some times when I have to drill holes in a deep recess, and the drill motor is too fat to fit, I use a spare chuck
with a Lo o o og threaded bolt. (With the head cut off)
Stein.
Try...http:www.zonatool.com/pinvises.html
Model 37-140
Edited 1/9/2004 4:39:01 AM ET by steinmetz
Edited 1/9/2004 4:45:03 AM ET by steinmetz
Edited 1/9/2004 5:10:45 AM ET by steinmetz
Hi FG,
As others have mentioned, you need a pin vise. I etch my own circuit boards and do a great deal of modeling so I use these drill bits (61-80) often. I have never had any luck using them in a power tool as they are so fragile that they bend and break easily. A hand held pin vise is what I have gravitated to.
For small tools I have found http://www.micromark.com/ to have a great selection and reasonable prices. I've dealt with them for years without any complaints.
Be safe,
Ken
Thanks for the excellent information, everyone. Just to answer, I'm drilling the mini-holes in wood for scroll sawing (have one special-request ornament to make; want to make a clock or two and some picture frames). I'll digest the info above and try a couple things. I bought, off the net, what was puported to be a mini-drill bit chuck, but turns out to be one of those chucks for use in a cordless screwdriver. No objection to that per se, but the bits wobble all over the place and I'm not happy about that. Looking for something a little more accurate.
The micro-chuck from MSC looks like a winner. If it doesn't work, I'll probably try the pin vise route. Ideally, it will be usable in a drill press so the holes are perfectly verticle.forestgirl Another proud member of the "I Rocked With ToolDoc Club" .... :>) you can take the girl out of the forest, but you can't take the forest out of the girl ;-)
Another possibility, if you're going to be drilling a lot of little holes, is to get a smaller chuck and an extra adapter so you can just
swap chucks. (I assume we're talking about the drill press here.) Jacobs and Albrecht both make chucks that they advertise as taking drills right down to 0" diameter.
F.G.
The small drills will require a very delicate touch when you feed them into the work.
I use a floor model drill press that is ideal for the usual run of shop work,but I would hesitate to do delicate drilling with it.
One of the small bench top units might be more suited to your purpose. Another thing,always put as much of the drill as possible into the chuck.The less out of the chuck and unsupported,the better off you will be. It also helps to put a small dimple at the hole location to lessen the tendency of these small bits to wander.
Whatever you do---Work safely
¬¬¬¬¬¬¬¬¬¬PAT¬¬¬¬¬¬¬¬¬¬¬
Hi Pat, yep the drill press I have is a small Delta benchtop unit. Those mini-drills feel like I could break them with m' bare hands! They are thin. I just can't eyeball a perfectly verticle approach, and with the scroll-sawing it often has to be that way. I have a couple of other options if the drill press doesn't work.forestgirl Another proud member of the "I Rocked With ToolDoc Club" .... :>) you can take the girl out of the forest, but you can't take the forest out of the girl ;-)
If the part to be drilled is flat and it is supported by the table and the drill bit is in the machines chuck,a vertical drilled hole is a done deal. However if you are drilling shaped or non flat pieces,such as jewelry,then a different approach will be desired.
Work safely and drill straight holes.
Hah ¬¬¬¬¬¬¬¬¬PAT¬¬¬¬¬¬¬¬
I have a cheap Delta dril press. The chuck holds #80 drills true.
The RPM on most drill preses is not high enough to small drills.
"The RPM on most drill preses is not high enough to {verb?} small drills."Just curious! Thanks George!forestgirl Another proud member of the "I Rocked With ToolDoc Club" .... :>) you can take the girl out of the forest, but you can't take the forest out of the girl ;-)
replace the "to" with "for"
The RPM is not high enough for small drills.
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