actually (and the smaller the drill the better) you can chuck up something "soft" like a small hardwood dowel(yes, I know) and put a taper on it with a file or fine rasp while it turns. Then push it into speedometer socket and run. The wood will strip or fray before you damage the metal. A short piece of hard plastic tubing will work too.

__________________
'82 300SD - 361K mi - "Blue"

"Good judgement comes from experience. Experience comes from bad judgement."

listen, look, .........and duck.