Security wheel nuts

Hello all,
My blue Frontera has developed a slow puncture. Since it's still sitting around waiting for a new engine i can't get it anywhere to inflate the tyre again.
I was going to take the wheel and replace it with the spare but I noticed I have these special nuts on them.
I've looked through all my breakdown gear and can't find the correct key.
It's '97 swb, does anyone know what type of socket I need for this?
As a heads up this Frontera might possibly be up for sale for parts or restoration.

I forgot the photo of the nut!
Here it is.
https://drive.google.com/file/d/1cWVGHY ... p=drivesdk

My phone takes too high resolution photos so I hope this works.

Not had one like that before. Doesn't look like enough room to use a gator grip socket.

looks like some i had on an old motor. i bought them from halfords not sure how many different shapes are available maybe if you could weld an old wheel nut to it then undo with normal brace

Gregster might have one. I had one front wheel which went down each week and I used one of the plug in to the cigarette lighter pumps all the time. Subsequently I have got a new tyre on that rim ( as part of its new mot ) as it still went down in spite of a friend patching the inside where it was leaking.

You might find some one close advertising on ebay that can get them off if not these work really well
http://www.ebay.co.uk/itm/DYNOMEC-Locki ... Sw5dNWlgL3

Hi.

You could try this guy's method in this link.

https://youtu.be/WjIkiSTbYAs

Hope this helps.

I've used the above method before and it worked well. Worst ones I had were the ones with spinning outer colar on.

I'm going to be using this method on a 2002 Corsa sometime, if the previous owner has not got the key, on all 4 nuts/bolts.