Drill bit coatings are compounds that are applied outside of the drill bit. The most used drill bit coatings are black oxide, TiN (Titanium Nitride), TiCN (Titanium Carbonitride), and TiALN (Titanium Aluminium Nitride). These coatings are made with Titanium, Carbon, Nitrogen, Ferrus and Aluminum. Each of these drill bit coatings has specific physical and chemical properties. According to the properties variation, its usage can be varied. Due to the properties and usage, each of drill bit has advantages and disadvantages.<\/p>\n\n\n\n
When using a coated drill bit, it can be damaged due to braking, drilling hard materials, and resharpening. Hence, coated drill bits should be used properly without damaging the outside coating. Coated drill bits are made with different materials, such as steel, HSS, and cobalt. These materials have different hardness and strengths. Therefore, the same drill bit coating can affect different ways in different drill bit materials. <\/p>\n\n\n\n