Suggestions To Remove Connectors?

Hello all...Trying to figure out an easy way to remove the connectors on an 8-way coaxial splitter. The connectors are brass and the casing is aluminum.

Here's a link of what I'm talking about. (Regret link, can't attach picture).

DIRECTV 8-Way Wideband Splitter for SWM Satellite LNBs (SPLIT8MRV) from Solid Signal

The connectors are threaded, so it's possible to screw them off but trying to figure out if there's a tool that I can do this quickly & efficiently. I have a few hundred of these so if I can do quickly & efficiently, it might be worth it to separate.

Any suggestions would be helpful.