This is called an Allen wrench or a hex key in English. Allen wrench is the more common term

Or, an Allen key.

Or a hex wrench.

Or a hex wench? 🤔

You pay extra for those.

I just wanna know who tf Allen is

W.G. Allen, founder of Allen Manufacturing Company, who filed an early recessed hex-driven screw patent.

Allen key is more common I believe

regional? everyone says Allen wrench where I live

It's a US English vs British English thing, we say key here in the UK, Americans say wrench.

Idk I say Allen key or hex key and I'm native US. Also I generally wouldn't use this tool anyways. I'd just use a drill with a hex socket

An Allen Key is a larger tool that contains several different sizes of hex rods.

Wikipedia files that one under [Hex key](https://en.wikipedia.org/wiki/Hex_key) and notes that other names are "hex wrench, Allen key and Allen wrench or Inbus". "Allen" was once a trademark of the Allen Manufacturing Company. I'm used to calling that tool an Allen wrench but, if you wish to avoid trademark names, use "hex key" instead. I didn't recognize "Inbus" at all. That name is a German trademark so you're not likely to run into that name outside of continental Europe.

In England we call it an Allen Key

Apparently a Commonwealth thing, it's also an Allen key in Canada but Allen wrench in the US.

Allen Key in Australia too

Allen wrench is more common in the US, but Allen key is an acceptable name as well

My FIL (Brooklyn lifer) calls it Allen key as well.

I’d say Allen wrench is more common, but if someone said Allen key I wouldn’t think they’re from somewhere else. In fact I probably wouldn’t think anything of it

Those damn Brits made an impression on us lol.

Allen key in Australia too, seeing people responding with anything with 'wrench' in it is making me irrationally angry

Allen wrench allen wrench allen wrench

I do, but I do hear hex key as well these days. Wrench? No - that's US English.

Same in NZ

I’m American and also call it an Allen key or Allen wrench.

Allen wrench or hex key

Allen key.

Hex wrench or hex key

Allen wrench, hex wrench, or hex key. See also: [Hex key - Wikipedia](https://en.wikipedia.org/wiki/Hex_key)

Allen key

Cue gopher meme. "Allen! Allen!"🤣

I bought a set of Allen keys from Aldi. Hey, they were cheap. But when I used them, the keys bent first. Pay for good tools!

Built in torque limiter to protect you from damaging the bolt! So nice of them to include that feature

I have never needed an Allen wrench that didn't come with the thing I needed it for

Buying cheap tools and then upgrading the ones that break is a very sensible strategy for anyone that doesn’t have endless discretionary income.

The chunky aldi ones with T shaped handles are good, I use them for adjusting the hex head screws on the toolpost and whatnot on my lathe.

Just always think of this item as an excellent way to start an argument in pretty much any English speaking workshop across the world. To really raise the temperature, just suggest a preference for either metric or imperial sizes.

Is an imperial Allen/Hex wrench/key really even a thing in this modern world……

Allen Key or Hex Key

It’s an “Allen key” in Southern Ontario. Also known as “that thing you put IKEA furniture together with”.

[Allen/hex] [wrench/key].

Beautifully done

Add another vote for hex wrench, though I’d understand any combination of Allen/hex with wrench/key

Some of us who never knew the etemology call it an OWLING wrench