We have used many different products to inhibit rust as we store some things for a long time. Also, there are some knives that seem to want to rust while you are looking at them. For the joints I use Slick50, but you can get that just as easy as I can. For a protectant I have used spray silicone, frog lube, etc. My current favorite CLP (cleaner, lubricant, protectant) is Seal1. It is easy to apply; common sense packaging; and it has hundreds of testimonials on youtube, etc. for the magic it works.
If you want to test it yourself, put a note on your knife order during checkout to include a sample tube. Then you will be back to pick up more later. This 4oz container will last a very long time.