Non motoring what is it

[Mike Hodgson]

This one could open a whole new can of worms

[Midlife]

Looks a bit like a bottle opener?

[Mike Hodgson]

Looks a bit like a bottle opener?

No but it has a similar domestic use

[Keith Bennett]

Can of worms opener, then?

[Mike Hodgson]

Can of worms opener, then?

Ok I will give you that one ,you have the answer (more by luck than judgement)
It is in fact a Victorian tin opener from the late 1800s to early 1900s,it has a steel on the opposite end for knife sharpening.
I found it on eBay where it was listed as a specialist car tool (Peerless)

[Keith Bennett]

You gave the game away at the top of the post, Mike, when you introduced the device!

[Mike Hodgson]

You gave the game away at the top of the post, Mike, when you introduced the device!

Purposely done to make it easier and hopefully more people would get involved
Failed

[Keith Bennett]

Well, I've enjoyed the hardware puzzles you've taken the time to set us but their sometimes impossible-to-guess uses does make me wonder just what else that old cardboard box in your shed might hold!