Electrical contact cleaner with applicator helps a lot in cleaning contacts from any oxides, salts, etc. Note, however, that the preparation alone may not cope with the mega large gray-green tarnish and you still need to act mechanically. The preparation nicely cleans and displaces moisture. With its help you can safely clean connectors and electronic components without the risk of damaging them. I recommend.
The rust remover works according to product specifications. It penetrates, protects, cleans, etc. For those expecting a shiny metal effect after application, I recommend not watching any more memes from Asia. The rust remover did its job. In several places I was able to stop the corrosion process to deal with it later. In others it allowed to get rid of the rust. Recommended.
Very convenient to use thanks to the applicator with a consistency to embrace (not too thick and not too runny). Clear color. Securing screws with Mannol red thread glue looks professional. If someone has a lot of time, he can sprinkle each screw as a trace of an attempt to unscrew I recommend.
I used JMC's cooling spray when putting on the bearing raceways. In a very short time it was able to shrink the metal enough so that it went into place without difficulty. Effective. Mega cold. I recommend