Any ideas on getting the remainder of my speed sensor which has snapped in the gear box housing out??

I have the top half in front of me............
All help greatfully received. Cheers...

 

Long nose pliers, it's more essential to get the metal parts out, any plastic shreds of outer casing aren't going to be a massive issue in comparison, so try pulling innards out first, tried all the usual I suppose ?, try diesel fuel around the outer as this will seep down the edge better than any sprays, and will help to loosen if there is anything left to grasp ?
tabetha

 

Hi Tabetha,
Thanks for the suggestion, I can't believe it snapped, I was told that getting the pin out was the worst part of this job, but that came out with less of a fight. I will have a go at this today and will post my results.
Thanks for your help.