Coating | Photo | Specifications |
Bright Drill Bits Coating (Polished Metal) | Check Price and Availability | Bit polishing helps reduce friction. For woods, plastics, and aluminum. |
Black Oxide (Black) | Check Price and Availability | Oxide helps hold a thin film of lubricant better than a shiny finish, it helps reduce friction. For ferrous materials preferably. |
TiN – Titanium Nitride (Gold yellow) | Check Price and Availability | Coating resists friction and improves the heat transfer, providing longer life in comparison with standard high-speed steel bits. |
TiCN – Titanium Carbo-Nitride (Reddish yellow to violet) | Check Price and Availability | It is harder and more durable than other coatings. Used for cast iron, stainless steel, and aluminum. |
AlTiN – Titanium Aluminum Nitride (Bluish-Violet-Black) | Check Price and Availability | Designed to increase the temperature resistance and hardness. The bits are heat resistant up to 800 degrees Celsius. Not used for aluminum. |
ZrN – Zirconium Nitride (Brass colored) |
| Strengthens brittle drill bit types and decreases friction. Excellent for precision drilling. Has reduced the risk of accidental damage on brittle bit types. |