What is Black Oxide Coating? Ask the PTR Pros

Black oxide coatings appear on a variety of products—most commonly on drill bits, folding knives, and other knife blades. Just what is black oxide coating? In a nutshell, black oxide coats materials in a chemical conversion as opposed to an electroplating process. According to Electrochemical Products, Inc., you can apply this type of overlay to steel, stainless, … Continue reading What is Black Oxide Coating? Ask the PTR Pros