What Tool to tighten the spider?

[Buckle]

Today I had to angle grind a seized carbon crank off of a Giant Reign (Nightmare and not to be recommended) The locking ring for the spider needs to be tightened and wondered if anyone knew what tool to use? I don't have a lbs!
Thanks.

 

[Padge]

Park Tool BBT-18

Just remember, this little fecker is lefty-tighty, righty-loosey