Smallest dill bits I've ever seen.

[Bottlecapdigger]

I was cleaning out my newly purchased vidmar cabinet that I bought from a machinery surplus dealer. (That's another topic) I was lifting out all the drill bit trays and found all these under neath. Some smaller than a needle. Bcd

 

[2000-cvpi]

If you don't want them, model car, boat, plane, etc builders use them. They have value at the least to those guys. I'd put a selection of sizes up on eBay in the model section and see how it goes.

I use small bits to drill out distributors to add wires to make engines more realistic. There's tons of things I use them for when detailing a model car.

 

[2oolhound]

Or is this thread really about your new Vidmar Cabinet

Now you need a pin vise to hold them in a chuck or just drill by hand. I use them for cleaning carb jets mainly but there are always a few times a year I use them for some other odd thing. Nice to have when you need one. Be careful, they break easily.

And oh yeah, Nice Vidmar!

 

[mikegt4]

My Dad had small drill bits that he used in model railroading, many with triple digit numbers.

 

[ducksface]

I have a couple of huot index's of those. The index is about the size of a fifty cent piece.

 

[Bottlecapdigger]

Or is this thread really about your new Vidmar Cabinet

Now you need a pin vise to hold them in a chuck or just drill by hand. I use them for cleaning carb jets mainly but there are always a few times a year I use them for some other odd thing. Nice to have when you need one. Be careful, they break easily.

And oh yeah, Nice Vidmar!

You like that cabinet? I love it! Ive been looking for awhile for one of these. It's what they call eye level height or 60" high. 10 drawer. I've spent most of the evening going over all the ball bearing rollers cleaning and regreasing. Got not a bad price on it too, or I think I did. BCD

 

[va.grouseman]

What does any one need a hole this small for?---Good read.


The engineering department of a defense plant at Newburgh, New York, has been experimenting with steel wire, drawing it out very fine. They finally produced a piece of 120-gauge wire — practically invisible. The boys were proud — so proud, in fact, that they cut off a strand and sent it to a rival defense plant farther upstate. “This is just to show you what we are doing in Newburgh,” they wrote.

Weeks went by. Recently, a package arrived at the Newburgh plant. The boys opened it with great care. Inside was a steel block; mounted on the block were two steel standards, and strung between them was the same piece of 120-gauge wire. At one end of the block was mounted a small microscope delicately focused on a certain spot on the wire. One by one the engineers placed an eye to the microscope and examined in silence the work of their rivals, who had bored, in the wire, a rather handsome little hole!

 

[Lassen Forge]

Try those for rejetting carb jets - I've seen some so small there was no way in hades i ever dared trying to use them- too tiny and too fragile, kind of like thick hair size... Could never figure out how the hell to use something that small. I mean, yeah, something that tiny HAS a use, just how do you keep from shattering it from anything more than looking at it???

 

[Bottlecapdigger]

I going to keep them and will probably like you said be Using them when I'm cleaning carb jets, I had to do that more than once. Those interested in the vidmar I'm going to start another thread, I have some questions. BCD

 

[Bottlecapdigger]

Or is this thread really about your new Vidmar Cabinet

Now you need a pin vise to hold them in a chuck or just drill by hand. I use them for cleaning carb jets mainly but there are always a few times a year I use them for some other odd thing. Nice to have when you need one. Be careful, they break easily.

And oh yeah, Nice Vidmar!

What does any one need a hole this small for?---Good read.


The engineering department of a defense plant at Newburgh, New York, has been experimenting with steel wire, drawing it out very fine. They finally produced a piece of 120-gauge wire — practically invisible. The boys were proud — so proud, in fact, that they cut off a strand and sent it to a rival defense plant farther upstate. “This is just to show you what we are doing in Newburgh,” they wrote.

Weeks went by. Recently, a package arrived at the Newburgh plant. The boys opened it with great care. Inside was a steel block; mounted on the block were two steel standards, and strung between them was the same piece of 120-gauge wire. At one end of the block was mounted a small microscope delicately focused on a certain spot on the wire. One by one the engineers placed an eye to the microscope and examined in silence the work of their rivals, who had bored, in the wire, a rather handsome little hole!

That's good, haha!

 

[KMScott]

I have drilled many small holes in steel. The number 80 drill is about .014 thousand in diameter. How I drill holes this small is by using a sensitive drill chuck and stepping down about .0005 each step. Spinning my Bridgeport at max speed. I use the knee to raise each time I pull the handle. I used holes this small in graphite and copper tungston electrodes for flush holes. The graphite was easy to drill but the copper tungston was more time consuming.

My jets in my race car were much bigger say around .070 and in the machinist trade that is pretty big , I am not familier with small hole jets. What size was these bits you picked up?

 

[Motorman55]

I use small bits for cleaning out and enlarging carb jets on mowers and other gas powered equipment daily at work. I have a small kit with a pencil type tap handle.

 

[6PTsocket]

They are a regular part of the numbered drill sequence that goes down to #80, which is 0.0135". Sets usually are 1 to 60 and 61 to 80. Obviously the bigger ones are a lot more common. You have quite a stash there. They require a pin chuck, as a regular chuck is too big to hold thrm.

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[6PTsocket]

What does any one need a hole this small for?---Good read.


The engineering department of a defense plant at Newburgh, New York, has been experimenting with steel wire, drawing it out very fine. They finally produced a piece of 120-gauge wire — practically invisible. The boys were proud — so proud, in fact, that they cut off a strand and sent it to a rival defense plant farther upstate. “This is just to show you what we are doing in Newburgh,” they wrote.

Weeks went by. Recently, a package arrived at the Newburgh plant. The boys opened it with great care. Inside was a steel block; mounted on the block were two steel standards, and strung between them was the same piece of 120-gauge wire. At one end of the block was mounted a small microscope delicately focused on a certain spot on the wire. One by one the engineers placed an eye to the microscope and examined in silence the work of their rivals, who had bored, in the wire, a rather handsome little hole!

That story has been going around for years but it is still fun.

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[Bottlecapdigger]

I have drilled many small holes in steel. The number 80 drill is about .014 thousand in diameter. How I drill holes this small is by using a sensitive drill chuck and stepping down about .0005 each step. Spinning my Bridgeport at max speed. I use the knee to raise each time I pull the handle. I used holes this small in graphite and copper tungston electrodes for flush holes. The graphite was easy to drill but the copper tungston was more time consuming.

My jets in my race car were much bigger say around .070 and in the machinist trade that is pretty big , I am not familier with small hole jets. What size was these bits you picked up?

i will measure it on the vernier tomorrow. BCD

 

[bczygan]

Use a sensitive drill press.

I have a Dumore:

Bill

 

[ducksface]

That story has been going around for years but it is still fun.

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I can tell you I first read it as a nine year old 1967. I believe readers digest. And our taunt to Russians backfiring... And the wire was turned into a tube by drilling a hole longways through it.

 

[bushmechanic]

What does any one need a hole this small for...

It's for those times when you just have to own a fully functional Thompson that will store neatly in a full-size Thompson magazine.

 

[Richard Cranium]

I just picked up an Huot set at a yard sale for 10.00

 

[DeadPedal]

I work in a lab where we develop electro-hydraulic controls systems for transmissions (solenoid so and valve bodies, etc.). We use bits like these to create orifices for regulating oil flow. Drilling through steel with these is a PITA.


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[dadsEH]

What is a DILL bit?

 

[Bdgjr215]

My dad showed me drill bits like those he used when he worked at tinius olsten .they make all sorts
Of precision testing equipment

 

[6PTsocket]

I just picked up an Huot set at a yard sale for 10.00

Huot only makes drill indexes.Somebody else made the drilll bits. Some bits are better than others. I have seen them in carbon and HSS. If they bothered to put them in a Huot index they are probably decent bits.

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[6PTsocket]

What is a DILL bit?

A piece of a pickle.

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[OccupantRJ]

We have a lady at work who could not tell you what makes a drill bit drill, but she regularly drills .0035 holes in brass gas jets on a levin lathe. They have to be quality checked by projecting a light beam through the hole and checking it's shape on an optical comparator.

https://levinlathe.com/sony.html

 

[Leveleer]

In the 1980s I had to figure out how to drill holes as small as .004" in stainless steel and even tougher materials on a production basis. While developing the necessary procedures, I personally drilled holes as small as .006 on a Bridgeport mill. (not fun).
The task was made even harder because the tiny holes started at bottom of a larger series of concentric holes.
It took quite a while to perfect the techniques but now it's done on a production basis on CNC machines.

 

[rlitman]

You should look up the laser drilling process Apple uses to make aluminum allow light to pass through.

 

[Leveleer]

You should look up the laser drilling process Apple uses to make aluminum allow light to pass through.

I retired from that business 14 years ago.

This picture shows one of my shops from 1985. On the right is a laser control unit that I interfaced to a Kuraki KV700 machining center for laser drilling .008" diameter holes in 316 stainless steel manifolds.

 

[lilredex]

You can find twenty piece drill bit sets (#61 to #80) at HF and PAL. often for $5 or so, but not in a Huot index.

https://www.princessauto.com/en/detail/powerfist-20-pc-precision-drill-bit-set/A-p3410147e

 

[6PTsocket]

You can find twenty piece drill bit sets (#61 to #80) at HF and PAL. often for $5 or so, but not in a Huot index.

https://www.princessauto.com/en/detail/powerfist-20-pc-precision-drill-bit-set/A-p3410147e

The HF set for $3.99 is 30 HSS pieces but not 30 sizes. There are various quantities of 9 metric sizes, from 0.5 to 3mm. 0.5 mm is close to a #77 but the set runs well out of the 61 to 80 range. 3mm is 0.118 or #11.

I work in a lab where we develop electro-hydraulic controls systems for transmissions (solenoid so and valve bodies, etc.). We use bits like these to create orifices for regulating oil flow. Drilling through steel with these is a PITA.


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You can find twenty piece drill bit sets (#61 to #80) at HF and PAL. often for $5 or so, but not in a Huot index.

https://www.princessauto.com/en/detail/powerfist-20-pc-precision-drill-bit-set/A-p3410147e

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[Pipe Wrench]

Proxxon has small drill bits and also a set that includes 0.3 mm, 0.5 mm, and 0.8 mm.

I have a small Proxxon drill press with a chuck that can take the 0.3 mm bit. I use those tools for precision mechanics and model building.

 

[Jawn]

I've used bits in that size range for model railroading... when you want to add a thin wire detail part to a plastic model, you use a pin vise (think pen-shaped handle that holds the drill bit at the end) and spin it by hand to drill a hole through the plastic, then superglue the detail part into place.

 

[jeff lary]

Yes I heard the same sort of story from a long winded machinist I used to know. It was about the watch making trade this time though. The made a bolt so tiny that yada yada and sent it to Sweden. Some Swedish watch manufacturer sent it back to them later,they drilled and tapped it and made another smaller bolt and screwed it into the first bolt...

 

[Mhyde52]

Yes I heard the same sort of story from a long winded machinist I used to know. It was about the watch making trade this time though. The made a bolt so tiny that yada yada and sent it to Sweden. Some Swedish watch manufacturer sent it back to them later,they drilled and tapped it and made another smaller bolt and screwed it into the first bolt...

Just shows you that there are d*ck measuring contests going on in every country.

 

[Pipe Wrench]

In the picture below a few of my smaller drill bits. 0.3 mm is the smallest I have used. I have only one handheld drill bit holder that can actually hold it. That's why I generally prefer taper shank drill bits like the ones on the right.

 

[bob15]

Small drill bits up to .008" (#92) are normal in my place of employment, seen/used in orifice and bleed holes. That being said, many times items being drilled that small will be EDM'd instead of being drilled.

 

[NoahG]

Well shoot, here I thought 3/64 was a pretty tiny drill bit.

 

[Bottlecapdigger]

i will measure it on the vernier tomorrow. BCD

the smallest one is 0.014"

 

[6PTsocket]

Small drill bits up to .008" (#92) are normal in my place of employment, seen/used in orifice and bleed holes. That being said, many times items being drilled that small will be EDM'd instead of being drilled.

Wow. This is the first time I have heard af anything below #80.

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[bob15]

MSC & Grainger sell the tiny drill bits. They call them "micro-bits". And they aren't cheap, especially the MSC bits.

http://www.carbideprocessors.com/pages/types-of-drill-bits/drill-bit-size-chart.html