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Bondhus, good stuff?

FNFS2000

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Jan 12, 2009
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859
twisting up like that looks like something from china would do. I would guess the fracture torque of PB or WERA(or even the WIHA) would be much more than the torque it takes to twist a bondhus in a circle. Who would keep pulling after you saw it twist anyways you know whats coming next... most of us know how to avoid skun knuckles by now :)
 
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garfunkle24

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Piss on a bunch of safety twist. I want an Allen wrench that is hard! That way it's going to transfer the greatest torque. That Soft Pete thing is good for the trash and nothing else.

Elroy may well be right ,but to verify we would need more than just pictures of twisted and broken keys. We would need to know at what torque the keys fractured or began to twist and also the maximum torque applied (or sustained I guess) during the destructive test.
 

Elroy

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OK this going to be fun so don't get your ******* all in a bunch. Keep an open mind and practice your anger management techniques.

What the hell do you mean

Elroy may well be right

You're damn right I'm right. The last time Elroy checked hardness was directly proportional to tensile strength. So for a given diameter, a hard tool is going to be stronger than that wet noodle.

Angular deflection in a shaft =TL/JG Baby.

Look up what "G" means. Modulus of rigidity in shear, and see what it says about hardness.

Don't need any data. Unless you pull some **** about one tool being fractured at cryogenic temperatures while the the other tool was at transitional temperatures

Elroy will say it again:

Piss on a bunch of safety twist. I want an Allen wrench that is hard!

Did Elroy just become an *** hole like that Franz dude?

Nope just stating facts. No hurt intended. Take it the right way my man. :beer:
 

garfunkle24

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Elroy

I full expected such a response and have come to expect no less. Figured you 'd have some formulas to explain how little i know.

Thanks for straightening me out!

Always happy to learn more, even if I have to push a few buttons to get there.

I'd still like to see the data though!
 
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Stuey

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Elroy - Just because it is deformed does not mean that it will deform under the torques that fractured the other hex keys.

Bondhus claims that their Protanium Steel is the hardest, most ductile, and longest wearing steel that exists in the hex tool industry. Hard and ductile.

ALL hex keys will either flex or break. Look at the others - they both have plastically deformed broken-off pieces as well.

From the looks of it, it appears that the kex key was rotated enough to twist two faces. That means that the Bondhus hex key was twisted at least 120°!! At that point, you're not transferring any additional torque, you're just stressing the steel.
 
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-B-

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Feb 4, 2009
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Northshore of Boston
Find some Hollow-Krome or even genuine Allen brand would be fine.

That twisty thing is junk IE'sHO.

Genuine Allen are far better especially if they are used daily Bhondus needs replacement yearly.

PB Swiss are tops too.

I live and die by the hex wrenches working on bicycles junk gets rotated out fast.
 
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