Hi,

A Screw-out or easy-out doesn't work. There's not enough meat to stop it from compressing the bleeder against the threaded hole.

Your bleeder on the rear ATE caliper has a Metric 7- 1 thread. You can drill the core with a 15/64" drill (.234) or better yet letter B (.238).

The depth of the hole is about 12 mm, but the bottom of the treaded portion is a little less than 10mm so that's how deep to drill. The bottom undrilled part of the bleeder is a bout 5.5 mm diameter, so is should fall out. You should be able to feel the drill meet the bottom of the bleeder hole.

You might use a dental pick to pull out some of the threads and get an M7-1 tap started or it may start on it's own.

Odds of success are quite good If you can get the caliper to a bench with a vise and good light. Doing it on the car, odds are not so good.

Good luck, Peter