![]() This heat softens the HSS bits, which means they are not as hard as cobalt. These drill bits are made of regular HSS bits heated to 950 Fahrenheit to achieve a black oxide finish. Hardnessĭespite what you may have heard, black oxide drill bits are not the same as HSS bits. In that case, you’ll most likely be okay with getting a set of quality black oxide (or even simple HSS) drill bits. What do you need your drill for? Suppose you’re just drilling into softer materials like wood. Consider your situation and the material you want to drill. It is possible to make a case for a third option, a combination of both! For a small, one-time job, black oxide drill bits are probably the best option.īut for a larger, long-term project, you may want to opt for cobalt drill bits. Just because cobalt drill bits offer the best performance and black oxide drill bits are the cheapest doesn’t mean these are the only options. However, it is important to note that black oxide coatings may not provide the same level of durability and wear resistance as other coating options like cobalt. Black oxide coatings also offer good lubricity, reducing friction and wear. The process is relatively simple and can be applied to a wide range of metal parts. One of the major advantages of black oxide coatings is their cost-effectiveness. This makes black oxide coatings highly desirable for decorative and aesthetic purposes. The coating not only provides corrosion resistance but also imparts a visually appealing black finish to the metal. This layer acts as a protective barrier against rust and corrosion, prolonging the lifespan of the coated metal.īlack oxide coatings find extensive use in various industries, including firearms, automotive, and tool manufacturing. The black oxide process involves a chemical reaction that converts the surface of the metal into a layer of black iron oxide. What is Black Oxide?īlack oxide is a conversion coating applied to ferrous metals to provide corrosion resistance and improve aesthetics. Additionally, cobalt coatings may not be suitable for certain applications where their properties are not required or cost considerations outweigh their benefits. However, cobalt coatings can be expensive compared to other coating options, and the application process may require specialized equipment and expertise. Moreover, cobalt coatings can enhance the aesthetics of the underlying material, providing a smooth and polished appearance. Cobalt coatings also exhibit good thermal stability, ensuring their durability under extreme temperature conditions. ![]() It provides exceptional wear resistance, making it suitable for high-wear applications. The metal is often used in the form of alloys, such as cobalt-chromium and cobalt-nickel, due to its desirable properties.Ĭobalt offers several advantages as a coating material. Cobalt finds applications in various industries, including aerospace, automotive, and electronics. It is known for its high strength, excellent magnetic properties, and resistance to corrosion. No Amazon affiliate links (they'll be removed by the Automod).Cobalt is a hard, lustrous, and silvery-gray metal that belongs to the transition metal group. No posts promoting crowdfunding projects. No advertising or promoting tools, brands, 25000 woodworking plans, your YouTube channel, etc. This sub is not a place to discuss religion or politics. Pants optional, close-toed shoes required. We don't mind if you post a link to a video on your youtube channel, we just ask these submissions are not your primary activity on the subreddit.īe nice to each other or you will get a stern timeout from our over-qualified mod team.ġ. This is not the place to promote your youtube channel. All SPAM will be removed immediately and spammers will be blocked. If you feel your post was caught by the spam filter, message the mods HERE and we'll get all up in there to unclog it. We all love them, we all use them and we want to see what you find! ![]() If you're a newbie or DIYer, feel free to ask our experienced experts for advice. Please feel free to submit static images, dynamic images, videos, memes.
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