Already looking on MWR but time to widen the field, pointers welcome

Why ? just nosey

 

A much simpler solution would be a Jaxa style tool with the highlighted tip.

 

Already made a brief attempt with the Jaxa but it does not get a great grip and was in danger of slipping , would be a pity to scratch the back after all these years.

 

While you're waiting... here's what's on the inside of mine - photo credit to @Zaf Basha, the seller

 

Thermal shock. Invert a can of air (air duster) and spray the caseback. This will instantly freeze the back and you can then remove with a rubber ball or three point wrench, asssuming the very tight caseback is due to a liquidised seal and/or over tightening.

I've used this a couple of times on caseback I couldn't budge any other way.

 

I'd use super glue and a socket wrench set.

Have done it a couple of times now and it works perfectly. No harm done to the case back at all, just drop the case back and glued-on socket in solvent afterwards and it'll come off. No chance of scratching the metal either...

 

While I've never used this method, I have heard of it - you need acetone to remove the superglue afterwards (nail varnish remover)m

 

Yep, that's what I did.

 

No problem

 

Managed to open most with the old sticky ball but not this one.
Possible wrench on the horizon thanks to a fellow member, fingers crossed.

 

Metric

 

Has this gone on long enough now? Should we tell him it's a left hand thread?

 

If attempting to remove anything with a screw thread that appears seized always apply reverse pressure first

 

So many posts on a w.t.b.

 

Once again the members of this great forum and one in particular come up trumps
Is it ok to use the 'T' word