3 Simple Ways to
Share What You Make

With Instructables you can share what you make with the world — and tap into an ever-growing community of creative experts.

PhotosPhotos

Share one or more photos of a project, recipe, or whatever you've made, quickly and easily.

Step by StepStep-By-Step

Share your step-by-step photos with text instructions of what you made so others can do it too!

VideoVideo

Share your how-to video. You'll need your embed code from a video site such as YouTube.

Screwdriver with triangular head

Screwdriver with triangular head
Arrrgh...those silly little toys you get from McDonalds and such places have screws with triangular heads. It's fun to take them apart, but not when you have to literally saw through the plastic, like I used to. This was time consuming, slightly dangerous, and often ruined the cool bits inside that I was after. I sought a better way.

I looked all over the internet, and you cannot buy a screwdriver with a head like this. (I KNOW everyone and his brother will correct me on this, and post nine links to sites where you can buy a bucket 'o these for two dollars. So, you cannot easily buy a screwdriver with a head like this.)

As our good friends at MAKE say, If you can't open it, you don't own it.

While primarily found on little toys from fast food restauraunts (not just McDonalds), I've found these little screws on other small figures with leds inside them. This should work with those, too.
 
Remove these adsRemove these ads by Signing Up
 

Step 1Gather materials

Gather materials
«
  • DSCF5451.JPG
  • DSCF5456.JPG
To make a triangle head screwdriver, you will need:

  • Old screwdriver
  • Bench grinder

That's it!

For mine, I opted to go with regular two-penny nails instead of an old screwdriver. Cheap, plentiful, and no big deal if I mess up. I recommend you make one with a nail before you put the grinder to your screwdriver, to get the hang of using the grinder if you're not used to it, and to make sure you know how to shape it properly.

If you don't have an angle grinder, you could use wet concrete, a la Tim Anderson's hunting knife. It might take a year or three to do it that way though.
« Previous StepDownload PDFView All StepsNext Step »
89 comments
1-40 of 89next »
Nov 23, 2011. 9:59 AMittbmfy says:
Here's a guide (mis)using a BIC pen for this purpose
http://www.xavboxcube.com/fr/technique-du-bic-gamecube.php3
Aug 12, 2011. 10:10 PMlogicrules says:
How to make a Triangle Head Screwdriver Bit to combat ignorant manufacturers.
For some reason manufacturers seem to think that they have the only means to enter the devices they produce.
If they make it, there will be a way to alter it, and the triangle head screw is among the latest of their efforts. Of course, there are people that are just nosy.
The triangle head screwdriver, which happens to be very expensive, for a screwdriver, is a result of their efforts. Why? To get one to pay more for a very simple device that is unavailable to most people, and to try to protect their warrantees. Warrantee be damned!
So, in order to combat their selfishness I have found a very simple way to create this special screwdriver, and all it takes is an Allen (Hex) wrench just slightly larger than the screw you wish to ‘operate’ on.

An Allen wrench has six sides to it, and it is very easy to remove three of these sides to form a triangle head screwdriver. I managed to accomplish this with the wrench, hand drill and a grindstone.
Of course it can be made easier with a stand to hold these devices, and to easily calculate the angles to be removed with a vise and protractor, and proper grindstone but with some careful applications of the drill, and grindstone, and my hands, I did it in about a half hour, you could even use a file. It will require a sharp eye, and numerous trials for fit. I have no idea what size the bit is.
I now have a device to thwart their efforts! We wait for their next move.

Apr 19, 2011. 5:46 PMPhil B says:
Our church has a "reader board" sign out front. Each side has three screws requiring one of these screwdrivers. We are fearful of the day someone loses the three-sided screwdriver that came with the sign. I made a spare from a nail similar to the one you used. It is not perfect, but it works. Thanks.
May 30, 2009. 2:58 PMOwlbear says:
i also had trouble with these screws, i found that my set of finishing files had the right sized tips though and simply wrapped one in fine rope for grip to get the screws out
Mar 2, 2011. 12:34 AMKefo42 says:
Genius! You saved me some valuable time with this type, I just happened to have the right sized file from when I made models as a kid. Thanks!
Jun 8, 2009. 12:22 AMmettaurlover says:
NDS has these things, too. you do know that at sears you can get a whole set of "security" bits for screwdrivers. comes in handy sometimes.
Jun 8, 2009. 12:25 AMmettaurlover says:
also, they are classified under "tri-wing screws" if I am correct.
Jun 18, 2009. 5:30 AMbosherston says:
Nope, they're different I understand you find tri-wings on Nintendo DS? It's triangles on burger toys ( and strangely on my toaster :-/ ) Anyway here's the pictagrams for each for those that are interseted.... Hooray - it works ( had to click 'add images' again and again first though )
Jan 20, 2011. 1:47 PMESTEBE VERDE says:
Great Post bosherston! ;-)
Sep 24, 2010. 3:44 PMkill-a-watt says:
http://www.dealextreme.com/details.dx/sku.19865 ($3.90) they call this "tri-wing" and "try-gram", but it appears to fit the McTrash toys

http://www.dealextreme.com/details.dx/sku.19862 ($4.30) this one is 7mm rather than the above 6 mm. I don't know which was better.

Both of those are pretty pricey though. Here's a multi-bit set:

http://www.dealextreme.com/details.dx/sku.42425 ($9.90) one of them looks like it might fit.

http://www.dealextreme.com/details.dx/sku.42369 ($12.50) has two bits that might be a match

The problem with the bits is that the maker of the toy can create a narrow channel that's too small to admit the bit. The you are forced to braze the tip to something and then grind down the diameter at 3 AM in the morning.

I appear to have been the first to post a link to an actual product. Even so, at four bux a pop, I'd still probably go the grinder route on a nail myself.

Sep 24, 2010. 7:49 PMmettaurlover says:
DUDE. NOT COOL. Over a YEAR after the LAST post by the people involved originally.
Jan 20, 2011. 1:47 PMESTEBE VERDE says:
Why you clying? You Ok? Trolz wants cookiez???
Sep 28, 2010. 8:33 AMkill-a-watt says:
What is "NOT COOL"?

Replying to an older message is bad?

Can you explain a little clearer and with a little less CAPS LOCK?
Sep 28, 2010. 11:14 AMmettaurlover says:
Actually, replying to a comment in a chain the OP'ers CLEARLY abandoned it is bad.
May 17, 2012. 6:38 PMkill-a-watt says:
I replied to a comment with the very best graphic that explains the difference between tri-wing and what the OP was making.

What is your excuse for piling on here?  You just had to point out my "bad form"?
Sep 28, 2010. 4:33 PMmettaurlover says:
Actually, I had to point out the fact that you are replying to-and causing mail from-comments that the original posters have decided to allow to die, which means you shouldn't be replying.
Sep 29, 2010. 5:31 PMkill-a-watt says:
Were you subscribed by email to this thread? or is this some sort of drive-by criticism?
Sep 29, 2010. 5:34 PMmettaurlover says:
For one, I was the OP of this comment thread, second I was a replier to the thread, third you replied to an obviously dead reply chain that you were not involved in to begin with.
Sep 30, 2010. 9:07 AMkill-a-watt says:
OK, I think I understand now. I'm just a little flabbergasted because of the supposed "breach" of netiquette here. I just don't understand that at all.

From your k'nex instructables I'll surmise you are around 16 years old, which should mean that I've been on the 'net for around your entire lifespan My first post to usenet (after much lurking) was back in 95 or so. That's not back in the 'net's dark ages when it was just a few mainframes tied together with dry pairs, but still pretty old. Yet this "reply to old thread is bad" stuff is completely new to me.  Maybe we should suggest to the Instructables team that old comments on an inactive thread lose their "REPLY" button? I assumed the button was there for a reason. 

It's not like I posted a completely irrelevant comment or anything. I put links, with prices. to items that are on topic for this instructable.

I could understand the attitude  if you got an email from me because of a comment I made on how to purchase \/iagra or something.....
Dec 23, 2010. 10:10 AMemerson.john says:
It is nice that they allow children to submit and comment on Instructables, but it might be best if they had their own section. Adolescents, in particular, get too aggressive in their quest for attention, and are easily frustrated.

As you know, your comments were appropriate. They are of interest to me.

(I remember when high-speed (9600 baud) connections required dedicated, four conductor, hard-wired modems. I probably shouldn't tell that...)
Dec 26, 2010. 7:40 AMmettaurlover says:
I don't want attention, I want to be left alone for the most part. And no, there should not and WILL NOT be a separate section for children and adolescents for several reasons. Also, kill-a-watt's post should have been a new comment, not a reply to a previous comment that is completely different from what he posted.
Sep 24, 2010. 4:01 PMkill-a-watt says:
http://www.amazon.com/Silverhill-ASD3T-Triangle-Head-Screwdriver/dp/B001F3FUBK/ref=sr_1_1

free supersaver shipping, but $5
May 17, 2012. 2:49 PMbosherston says:
Meh, I found another variant. I got a freebie in the post today, a powersaver plug that picks up the IR from TV remote to shut down, Holding the case together are tri-wing with a little raised nipple in the centre, like security torx, sorry for the pic quality.
Dec 22, 2009. 10:25 AMskittlespider says:
Nice job on this.  Looks pretty easy, and I like that custom handle for the second one!

I was needing one of these screwdrivers to take apart Nintendo products.  I found a nice auction on Ebay instead of making my own though.

The auction included:
a tri-wing screwdriver
a small security bit
a large security bit

Now I can take apart anything made by Nintendo!
(As a side note, these special screws are normally only on the outside.  There are almost always typical flat head and Phillips head on the inside)
Mar 24, 2010. 5:43 PMKnexFreek says:
 im sure you already knew that :P good job on being nice :)
Dec 22, 2009. 4:07 PMskittlespider says:
Your welcome.  I have all kinds of screwdrivers at the house, because I have a habit of taking things apart.  Normally to fix or attempt to improve things, but sometimes just out of curiosity.
Mar 24, 2010. 5:20 PMKnexFreek says:
 I agree with what make says :)
Nov 5, 2009. 4:37 PMtom2oo9 says:
I like the instructable but you do realise you can use a small flat head screwdriver... I used to do this alot when i was younger and was bored >.<
Aug 28, 2009. 9:25 AMDodgy says:
Why not just use a FOUND screwdriver, or an old one, worn out (tip) one, or one from a garage sale, or a new one for $2 at the $2 shop ? That's what I've done, years ago. Dunno where the screwdriver is now. I could convert one into one, in a minute, on the bench grinder. And then 3 minutes with the wet and dry to smooth & polish the edges!
Nov 1, 2009. 1:44 PMfarmbrough says:
That;s all very well for those who have fancy tools like bench grinders at their disposal! If I had that sort of equipment, I'd probably already have the triangle-head screwdriver!
Oct 12, 2009. 11:24 AMKeith-Kid says:
The...annotations...uh...yellow square on the pics, still say Adrian Monk. BUUUUG!!!!
Oct 12, 2009. 11:49 AMKeith-Kid says:
Yes it is! You STOLE this from Adrian Monk! I'm reporting you to the authorities, Ner'doweller! ...Ner'do'well.....uh...'er...YOU KNOW WHAT I MEAN!
1-40 of 89next »

Pro

Get More Out of Instructables

Already have an Account?

close

All Steps Viewing
View all steps of an Instructable on the same page when you're a Pro Member.

Upgrade to Pro today!
148
Followers
16
Author:Lithium Rain
Lithium Rain is absolutely not to be trifled with when it comes to building insane and useless things. She prides herself on being able to eat more churros than your average horse. She is not a toaste...
more »