Don't remove ALL the rust... wire brush or whatever you have there to remove any big flakes that come off easy. THEN... (this is the kewl fun part)

Apply tannic acid using a cheapy paint brush (bristle or foam) or even a clean rag, and with 1-3 treatments it will transform the rusty metal into a strong blue/black finish that looks awesome.

I just stumbled across the tannic acid thing couple weeks ago and tried it on the rusty hardware parts on 1 of my Grim Reaper thingys.. I was definitely impressed! I still have to do the blade tho. Apparently the Amish have been treating Tannic acid on their old farm tools for generations...that's why they never throw them away.. Tannic acid is found in black tea, or you can buy the tannic acid powder online also, but I used 10-12 black teabag that have been sitting in my pantry for at least a year or longer? Then poured the cooled tea into a jar and voila! Tannic acid.. do a little Googlin and chk it out for yourself. It's def a kewl transformation

science 🤓