Can't remove drag mechanism cover

[Chopper]

Hi all, Currently trying to service a Silstar TR50 reel (pretty much the same and an Okuma Titus 50) and there is a lot of corrosion on the spool. Also I can't undo the plastic drag cover which is screwed into the spool and has pretty much the same diameter. Anyone who has looked inside these reels will know what I mean. Two questions - any ideas on how I can get a grip on the cover to remove....the grip is maybe 2mm wide. Whats the best way to treat and clean up the spool. I guess its aluminium corrosion. I brought the set up cheap. Thanks for any help.

[Brewcrafter]

Chopper - Welcome to the Forum from the SoCal Inland Empire!  If you get a chance, tell us a little about yourself.  While I do not have personal experience with that particular reel (I have serviced plenty of corroded reels  ) I am sure that one of the other Ohana will be along shortly with some more first hand experience. - john