I'm looking for a way of removing a sheared-off stainless steel woodscrew embedded in a hardwood plank that is accessible only via a 5.5mm diameter circular hole in a metal panel.
The screw is secured fast, so will need a good amount of torque to remove. The hole is too small for needle-nose pliers and the metal panel can't be removed without a lot of effort.
Because the exposed part of the shaft is mangled at the top, I've thought about several possibilities:
- A female square/hex key narrow enough to fit into the hole.
- A square/rectangular cross-section metal tube that I can fasten over the exposed shaft.
However, short of going bespoke, I'm not aware of any standardized tools/materials like this.
I'd be grateful for any advice on how I can get it out, short of drilling it.