The X on UK bayonets

[tlitt]

What does the X mean on British, Canadian and Australian bayonets. I've read it's a "bend" inspection mark and also that it signifies the blade was taken out of service?
Thanks.

Information

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[browningautorifle]

It's the test for flexibility, or the minimum bend. Read here...Lawrance Ordnance - Examiner's Marks on the Pattern 1907 Bayonet

[tlitt]

Interesting, Thank You.

[Peter Laidler]

We still had a 'bend box' for No1 bayonets and swords at the old 27 Command workshops when it finally closed down. Nobody knew what it was!

[browningautorifle]

I'll bet you could sell that now...

[Peter Laidler]

Let's just say that not a lot got away..................

[Patrick Chadwick]

I've read it's a "bend" inspection mark ...
Thanks.

AS you have already learnt, that is indeed what it is, but since that means that the blade passed the test...

...it signifies the blade was taken out of service.
Thanks.

... is not logical. My understanding is that the mark symbolizes crossed blades. I.e. a fencing action, as was taught in bayonet practice since the days of muskets. It indicates that the blade will withstand the sideways force that tends to snap the blade when fencing. Hence the name "bend test". Sounds plausible, but I cannot quote a reference at present.

[browningautorifle]

the mark symbolizes crossed blades

I had not heard or thought of that one...makes sense.

[Peter Laidler]

It was meant to test the capability of a sword to bend and then return to normal when used on horseback against a standing enemy. Horse is moving, enemy is standing. By definition, sword MUST be capable of withstanding the sideways bending motion AND return. Which is just what the test proves. I presume that's why it didn't progress to later bayonets. Indeed, the first of the current SA80 bayonets just showed its metallurgical dislike to any notion of a bend of any sort by just breaking the first 1/2" off the tip!

[browningautorifle]

Same with our Nella stainless C7 bayonets. Stainless needed to be hardened to the upper Rockwell to retain an edge, and when dropped on concrete, they shattered sometimes. Very disconcerting for a very young soldier.