ABS sensor question again
 

Recap: Went to pull out my abs sensor the other day and broke it off. Now I've spent most of the day trying to dig the rest of the sensor out of the hub. What I want to know is what if I get a piece of the sensor in the hub or rust. The sensor is fused in the hole it goes in and I've been digging at it with a hammer and screw driver. I have gotten most of it out, but I don't want to go any further without some good advice. Also does the sensor have a sleeve that goes around it before putting it into the hub? If so, I need a new one of those too. Please help.
Thanks
Doug 97A8

you don't want any crud in there
 

anything that obscures the teeth on the hub.

i'd use a thin pick, and a crc-type solvent.