I’m not talking about a hex key that extends in length but one where it can collapse in on itself to increase in size.
I did some digging online but all I could find was a patent from a company called TeleHex but it kind of sounds like they came and went in the mid 2000s. They’re website doesn’t seem to exist.
I feel like it could save space in my pocket compared to a typical hex key set or a multibit.
I was hoping I could at least find a bootleg version on Ali Express.
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Telehex failed (I guess they’ve been trying to raise money on Kickstarter since at least 2015) because it offers no real advantage over a regular folding allen key with interchangeable heads. it’s only good for 3, 4, 5 & 6mm heads, so you’re paying an absurd amount of money for something that you could replace with one of these for a lot less money in the exact same form factor. plus, you’re introducing multiple possible points of failure; there’s no way a Telehex would survive as many uses as something significantly cheaper. same reason the universal socket didn’t stick around
Perhaps you could get a bit kit like this and replace the bits with hex bits. This one is made by Victorinox
I wonder if there is a 1/4" hex drive set where the bits work like those old pencils
lol you’d have to sort through all of them one at a time to find the right one every time
True. You’d be giving up a bit of convenience for a bit of compactness. It wouldn’t be too bad with three separate tubes for Allen, Torx, and Phillips/flat/square
I have this nifty thing, but it isn’t exactly pocket friendly. https://lemm.ee/pictrs/image/a21b3474-8e3b-4eed-851d-cf96889384d1.webp
This is a solved issue. Use a bit set to have the different heads you need to fit on one driver. You can get ones that store the bits inside the driver.
Any telescopic mechanism is going to have a hollow centre and be weaker and prone to deforming. Larger hex keys are used to deliver more torque, making them hollows defeats the purpose of having a larger key, and small bolt and hex key should have been used to save weight and cost (or the same size to standardised the tooling).
Do you think the hollow core would make that much of a difference? The head of the key would still be solid and the depth required for each different size likely wouldn’t account to much. There would probably maybe half an inch at the opposite end from the head. If someone used a t like design, with the top bit being where the grip and hollow portion are, I imagine that would likely cut down a bit on torque exposed directly to the hollow section.
nothing fucks with tolerance like a twisting force, and that’s the only force you’re going to be applying to this thing.
