- Location
- Inside my skull
Trouble is if OP has jammed the end of the key so hard that it snapped then a magnet or superglue is unlikely to help.
Dilling is best but the steel is hard, very hard. Either drill and fit a small self tapper or drill a 3.5 cm hole and jiggle the remaining bits out with a thin screwdriver or similar.
They say they just tightened it using a finger and thumb. So can’t be all that tight.