Howdy all, just after some advice on the following problem.

At the back of my c4 where the speedo sender goes into some kind person has placed a solid hunk of metal in the hole. I tried drilling it out but got tired of drilling, so far I have gone down 15mm.

How to buggery am I going to get that bit of metal out?

Drill it out, then tap the hole with appropriate tap, put a bolt in the hole, then use a slide hammer to extract the piece of metal.