Here’s Scott Murray of LEVEL5 Tools with a quick overview of how to properly care for your blue steel and carbon steel tool blades. Care Instructions : High Carbon Steel and Blue Steel blades are often preferred by finishing professionals because they provide outstanding flex, feel and work ability. However, unlike stainless steel, they will oxidize/rust without proper care between uses. We recommend that the knives be cleaned thoroughly then lightly coated with WD-40 or a similar product prior to storage. The knives should also be stored upright while they are drying, to ensure water doesn’t collect near the handle.








