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Many years ago, I acquired a pile of tiny, drill-bit-like items that I use to make practically invisible holes in drywall to hang lightweight stuff from. They are indispensible, but I don't know what they're called. I got them from my dad, who in turn had received them from our dentist. They might be used in dentistry, or they might be from said-dentist's hobbies. I'd love to know the origin of this item! enter image description here

  • Welcome to Lifehacks, Tanaya! Unfortunately, the questions on here have to seek a lifehack. For example, "How can I drill nearly-invisible holes in drywall to hang lightweight stuff from?" We don't allow identification questions. Sorry! You may be able to get an answer on Quora.com. – CreatedByBrett Jan 17 '19 at 19:48
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    @BrettFromLA is right, this doesn't belong in Lifehacks, but these do look exactly like the things I've seen my dentist using when performing root-canal on me. – Lefty Jan 18 '19 at 7:40
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    Yeah, unfortunately Lifehacks was the closest StackExchange site I thought might work. "Medical Sciences" would have been much worse. :) Thanks @Lefty - if that hint doesn't work I'll try Quora. Cheers. – Tanaya Jan 18 '19 at 16:47
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    Dental drill bits. Generally only available from dental supply companies and usually only to dentists. Not a Home Depot item. – M.Mat Jan 19 '19 at 19:23
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Looks like endodontic files, or root canal tools if you prefer laymans terms.

You can probably find such tools on eBay if you want.

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While definitely not the same, you can find similar size bits with a Dremel or similar "Rotary Tool".

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Not to be repetitive those are files or broaches , not drill bits. They cut on the flanks by rotation and axial movement . A drill bit (should) only cut on the end. A drill bit does not have an enlarged shank for holding. I have several bits in that size range ; they require a collet to hold them. I never found a use for them except the larger ones are good to clean carburetor passages.

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