Pulled out my grandpa's old Gerber multitool last night to give some attention to. I noticed those few surface rust spots so I wanted to treat it with Boeshield T-9 (a cool corrosion inhibitor that comes out like oil and leaves a film over it like a light wax. Made by Boeing to keep their landing gear from rusting). This is my favorite multitool of all time. Beyond being that it was my grandpa's, it also has this really cool tool that they don't make anymore. It's super sturdy, has a nice chisel grind and is very pokey and quite sharp. Awesome for stripping wires and all kinds of other stuff.