I have soaked bike parts in citric acid powder for years.I have done several batches of drum parts.It's great at removing the rust.It just doesn't polish for you. LoLoLoLoSo between drum parts and bike parts one of these might be a good idea. :cool:
The thing is just a huge time-saver, mac. I've been cleaning this crap by hand for 25 years so this thing comes as a life-saver. I have much more productive things to do with the time that the tumbler has given back to me.
John