[Maestro]

Do you clean your tools with any solvents, that is my other guess, again i use mine lots over the 20 yrs and do not have what you are showing. however, I do not clean my tools with solvents, I just wipe them with a rag. Old time mechanic told me once never clean tools with solvents, the oil you get on them from working on cars protects them, solvents removed all the oils from the steel which allows it to rust.

The same is true for good Knives and Fry Pan, never clean them with soap and water, Wiping them with hot water and scrubby and towel them off is the best you can do so the oils stay in the metal. I know it drives my wife nuts when I refuse to clean my knives and pans in dishwasher or soapy water.