Originally Posted by CanadaBiker
I have the fin wrench, but it's the cast/aluminum-ish one. But maybe it'll still work fine. I also use anti-seize on almost everything. The silver stuff: # 133H.
I've removed a LOT of them. I start shooting them with penetrating oil at least a week or so prior to removal attempt. Then use one of the big cast aluminum fin wrenches like you have. Haven't stripped one yet. Maybe just lucky.