I have never personally used these drill bits but when we were at an engine builders convention in Florida, we were setup right next to these guys and I watched them drill through about everything you can imagine with these. Files, bearing races, taps, dies, easyouts, ball bearings, you name it, they were drilling through it. They now sell the bits individually and not that much money. A 1/4" x 4" will run $10.50, according to their website. They did say that you need to spin them fast, so you need to have a drill or drill press that is fast. Their website probably shows minimum speeds recommended. The guy also told me that the hardest thing he ever had to drill with them was a bedframe rail. He said it took him about 5 minutes to drill through that.

“We have shown that two separate designs can be joined together to enhance a run-of-the-mill chip that previously did nothing special,” Dr Tuniz said.

According to that guy, it was the hardest thing he'd seen. The guy brought him a piece at the trade show and said, let me see you drill through this. So he did, but he said it took a while. Then he asked the guy what it was. The guy grinned and said bedframe rail. Whether it really was or not, I guess we'll never know, but that's what the guy told him. I know those things are hard.

This hybrid approach allows the manipulation of light at the nanoscale, measured in billionths of a metre. The scientists have shown that they can achieve data manipulation at 100 times smaller than the wavelength of light carrying the information.

i had replied but for some reason it didn't send.  thanks so much for your comment. i will try with cobalt bits to see if it will help me out, do you have a brand of choice that you can send me a link to buy, i normally use 3/16, 1/4, 1/8.  i can only find 3/16 y 1/4 in mexico,  thats where im from, and they are Makita brand. i dont personally know how good those are, but i would rather buy where you have had good experience from. would you be so kind to share your supplier?

This modular approach allows for rapid rotation of light polarisation in the chip and, because of that rotation, quickly permits nano-focusing down to about 100 times less than the wavelength.

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Im sure you know this but making sure you are "pecking" as you drill and keeping it well lubed are important as well as the aforementioned rigidity.

I have the dual flute carbide bits in 3/32, 1/8 and 1/4 but for the most part I do all my drilling in the annealed state but I sometimes get a bar of stainless damascus for special orders and it comes heat treated to 58R so I do the drilling then with the carbide bits. One trick I found to break less of the 3/32 bits is to drill the magority of the hole with the 1/8 bit and do the break through with the 3/32 bit and this way I have been able to keep the same 3/32 bit for a lot of holes. i get all my carbide bits from USA Knifemakers with the cobalt bits by Sutton Tools through the NZ subsiduarly of the Australian Gameco Artisan Supplies.

You can use solid carbide drill bits or titanium alloy-coated drill bits such as titanium carbonitride (TiCN) and aluminum oxide (Al2O3) coatings.

Awesome. Thanks so much! Yeah I found that annealing and then drilling helped but for some reason (that I found out in this post) the instability of the mount and lack of rigidity was making me chip my bits. I actually tried to drill a 3/16 carbide and securely fastened it and made it so it was soooo rigid it wouldn't move an Inch and by calculating the force nearing the end of the hole I was successful on 4 holes!

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Thanks so much! I'll take a look! I do t know if a bed frame is as hard as quenched high Carbon steel. But let me take a look and I'll let you know after testing!

“This sort of efficiency and miniaturisation will be essential in transforming computer processing to be based on light. It will also be very useful in the development of quantum-optical information systems, a promising platform for future quantum computers,” said Associate Professor Stefano Palomba, a co-author from the University of Sydney and Nanophotonics Leader at Sydney Nano.

Another thing you can do is to back the workpiece with another piece of steel.  This way when you break through you are still drilling material.  Again, rigidity is important.

Research team: (from left) Associate Professor Stefano Palomba, Dr Alessandro Tuniz, Professor Martijn de Sterke. Photo: Louise Cooper

However, there remain substantial engineering barriers to complete this transformation. Industry-standard silicon circuits that support light are more than an order of magnitude larger than modern electronic transistors. One solution is to ‘compress’ light using metallic waveguides – however this would not only require a new manufacturing infrastructure, but also the way light interacts with metals on chips means that photonic information is easily lost.

I typically order my specialty bits like that through McMaster-Carr, for no other reason than it is extremely convenient for me.   Pretty much any industrial supply house, or even a good hardware store, will carry them.

I'm gonna try the cobalt. And if that doesn't work I'll go back to the carbide with a lot more rigidity in the mounting and I'll be even more careful.

ive got a nice knife made from bed frame but the frame section i tried had a cold shut or multiple cold shuts running its entire length, some bed frames can be hardened because they need to be springy but not all of them can be hardened.

Honestly, I dont buy carbide bits for exactly that reason.  If your drilling setup is not rock solid and perfectly true (most home machines aren't), you're going to have a very hard time getting the most out of them.  Small inconsistencies lead to chips, which then lead to bit failure.  I tend to lean towards cobalt bits, drilling slowly, with plenty of lubricant.  I've been using the same 1/8" bit for two years with no issues.

As noted above, when using carbide drills, everything must be rigidly mounted, your workpiece clamped to the drill press table either in a vise clamped to the table or the part directly clamped. Forget about using them without breaking in a hand held drill motor so you must have a drill press.  The other cause of breakage is when the drill begins to enter the farside of the part being drilled.  The cutting edges can grab easily since there is less material being cut so feed pressure must be reduced.  It is definitely a "feel" issue.

On-chip nanometre-scale devices that use metals (known as “plasmonic” devices) allow for functionality that no conventional photonic device allows. Most notably, they efficiently compress light down to a few billionths of a metre and thus achieve hugely enhanced, interference-free, light-to-matter interactions.

I have the dual flute carbide bits in 3/32, 1/8 and 1/4 but for the most part I do all my drilling in the annealed state but I sometimes get a bar of stainless damascus for special orders and it comes heat treated to 58R so I do the drilling then with the carbide bits. One trick I found to break less of the 3/32 bits is to drill the magority of the hole with the 1/8 bit and do the break through with the 3/32 bit and this way I have been able to keep the same 3/32 bit for a lot of holes. i get all my carbide bits from USA Knifemakers with the cobalt bits by Sutton Tools through the NZ subsiduarly of the Australian Gameco Artisan Supplies.

Im in diré need of your recos for a great tungsten carbide drill bit I've bought all brands and they keep breaking. Before you ask, yes I've taken all the precautions and still can't find ones that do the job right. Some will work for a couple of times and then break. If you could send me the link to your favorite bits I'd owe you big time. I'm looking for 3/16 and 1/4.

Already the gold standard for intercontinental communication through fibre-optics, photons are replacing electrons as the main carriers of information throughout optical networks and into the very heart of computers themselves.

I have programmed a 3/8 finish carbide bull endmill 4 flute, with 1/32 corner radious, to cut .3 deep on Z and about .25 on xy which is about 66% of the ...

“Eventually we expect photonic information will migrate to the CPU, the heart of any modern computer. Such a vision has already been mapped out by IBM.”

Thanks so much! I'll take a look! I do t know if a bed frame is as hard as quenched high Carbon steel. But let me take a look and I'll let you know after testing!

Now scientists in Australia and Germany have developed a modular method to design nanoscale devices to help overcome these problems, combining the best of traditional chip design with photonic architecture in a hybrid structure. Their research is published today in Nature Communications.

Professor Martijn de Sterke is Director of the Institute of Photonics and Optical Science at the University of Sydney. He said: “The future of information processing is likely to involve photons using metals that allow us to compress light to the nanoscale and integrate these designs into conventional silicon photonics.”

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Im sure you know this but making sure you are "pecking" as you drill and keeping it well lubed are important as well as the aforementioned rigidity.

Bed rail is some tough stuff.  I use it for building machine or sculpture bases and it kills drill bits immediately.  If I need a bolt hole, it is rough cut with the torch.

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This research was supported by the University of Sydney Fellowship Scheme, the German Research Foundation (DFG) under Germany’s Excellence Strategy EXC-2123/1. This work was performed in part at the NSW node of the Australian National Fabrication Facility (ANFF).

“We have built a bridge between industry-standard silicon photonic systems and the metal-based waveguides that can be made 100 times smaller while retaining efficiency,” said lead author Dr Alessandro Tuniz from the University of Sydney Nano Institute and School of Physics.

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“As well as revolutionising general processing, this is very useful for specialised scientific processes such as nano-spectroscopy, atomic-scale sensing and nanoscale detectors,” said Dr Tuniz also from the Sydney Institute of Photonics and Optical Science.

Light is emerging as the leading vehicle for information processing in computers and telecommunications as our need for energy efficiency and bandwidth increases.

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Yes that's pretty much what I do, and now I don't feel so bad that I break them in the exact same place someone else does. Hahaha.

As noted above, when using carbide drills, everything must be rigidly mounted, your workpiece clamped to the drill press table either in a vise clamped to the table or the part directly clamped. Forget about using them without breaking in a hand held drill motor so you must have a drill press.  The other cause of breakage is when the drill begins to enter the farside of the part being drilled.  The cutting edges can grab easily since there is less material being cut so feed pressure must be reduced.  It is definitely a "feel" issue.