Recommend a cheap, very thin coin

Hi
I wanted to get some coin advice...but not in relation to collecting. I want to buy a coin to use as a screwdriver!

Basically, without getting into too much unnecessary details, I have a screw that I am having trouble unscrewing due to difficulty finding a screwdriver to fit. I thought a 10 mm slotted (flat-head) screwdriver would work, but they all seem to be too thick for the slot. Any thin-tipped screwdriver I have is not broad enough to reach both sides of the slot in question. See the attached image to understand what I mean.



So I am looking for a cheap coin I could buy that might replace the screwdriver. It needs to be less than 1mm thick, and it's quite hard to find coins that might do the job. I am in the UK, so I guessed that a UK coin would be cheapest to obtain. The Wikipedia article on the British farthing says that it's 0.666 mm thick, but I bought a 1948 one on eBay and it is more like 1 mm thick.

Does anyone have any suggestions for a cheap, thin coin I could buy to do this job?
Thanks for your suggestions!

 

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Ahhh! Shame on you.....

 

Couldn't you file down a screwdriver head till it fits?

 

I am not sure, and don't take this the wrong way, but it sure reads like maybe you have a screw loose.....or wound to tight.

 

This Is The Way. Actually, The Way would be to get a proper retaining-ring tool, but I'd "sharpen" (file down) a cheap screwdriver.

I don't think a coin would even work, because it wouldn't be able to get deep enough into the slot and still clear the surrounding ring. You'd just ruin a coin for nothing.

 

I too would file down a screwdriver to fit the screw. It will give you more power to remove your threaded bushing.

 

Take it to a pro, “screw job, 25cents”

 

I'm with the file down a cheap screwdriver gang.

 

File down a screwdriver is the best option.

 

I agree with the rest, grinding your own "screwdriver" from hardened steel would be your best bet. Even if it would fit into the slot, a coin with the thickness that you are looking for would probably be pretty old (not cheap) and would have a metal composition (silver, etc) that probably wouldn't stand up to the torque forces that you need.

 

You could also take two small screwdrivers and clamp them together with vise grips, side by side. That would give you the width that's needed. Also keep in mind that one or both sets of threads may be reversed. Not sure what the part is.

 

Seriously? Why did you turn to using a coin instead of just making your own tool from screw driver?
Me thinks I smell a troll, or not.

 

Grinder

 

Just buy the correct tool, for cryin’ out loud…Spark

 

Brilliant

 

https://www.amazon.com/micro-screwdriver/s?k=micro+screwdriver

or break a razor blade and hold a piece with pliers.

 

Go scrape your screwdriver on the sidewalk till it's as thin as you need.
Think outside the box.

 

I would buy a cheap Jeweler's screwdriver kit at a hardware store maybe?

 

Those are way too small.

 

I have several inexpensive belt sanders with belts of varying widths from 1" to 6", that allow a controlled modification to hardened tools as a screw driver, knife, chisel, ax, etc..

An inexpensive H***** F****** 1" belt sander would facilitate modification to all of the aforementioned!