They are difficult, but they can be done if they are not real bad... The best bet is to remove the caliper so you are working on a bench w/vice ..and the easy out that works best on them is NOt the reverse screw type..it is the tappered square type.. They grab very well and do not expand the plug as much. It takes fineese......

Many a capliper bites the dust b/c of a broken bleeder ..bleeders are not as strong as they look b/c they are hollow...so pre- soaking is a must on old ones.......specially those skinny ones we all hate.

__________________
A Dalton