We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.
Materials

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

What is a Diamond Bit?

Mary McMahon
By
Updated: May 17, 2024
Views: 7,005
Share

A diamond bit is a drill bit made with industrial diamonds. Diamond is one of the hardest known materials on Earth, and can be harnessed in a bit to ensure that the bit successfully penetrates very hard materials. This type of drill bit is used in a wide variety of settings, from a jeweler's bench to an oilfield. Many manufacturers of bits also produce diamond bits, and can produce custom bits by request for specific jobs.

A typical drill bit works by biting into the surface being drilled with a sharpened tip. Once the drill gets a foothold, the biting edge of the bit pulls it through the surface to create a hole. With materials like glass, tile, stone, metal, and ceramic, the material is too hard and too slick for a conventional bit. Instead, the bit will generate friction as it spins against the surface, heating the surface and potentially causing it to crack. In addition, the bit can fail as a result of metal fatigue caused by the strain and friction.

In a diamond bit, diamonds embedded into the bit provide the “bite” the bit needs to drill. The diamonds may be attached to the surface or integrated into the bit using a sintering process. Sintered bits are sometimes preferred because as diamonds and bit material are worn away, new diamonds are exposed. This prolongs the life of the bit and eliminates the need to change bits during drilling when really hard materials are being worked or when the hole is extremely deep.

In a diamond core bit, the bit consists of a hollow tube, with diamonds along one end. The diamonds may also rise up into the tube. This type of bit is preferred for large holes, and may include a stabilizer, an anchor in the middle of the bit which helps to hold it in place. Blunt tip diamond bits, used for small holes, have a tip which is covered in diamonds so that the bit can penetrate.

Lubrication such as oil or water is sometimes needed with a diamond bit, especially when it is used on hard materials. The lubrication reduces friction, lowering the risk of breaking the bit or the material it is drilling. Especially when diamonds themselves are being drilled, as in the process of preparing a diamond for use in jewelry, lubricant is critical.

Various types of bits are available for specific applications. When using a diamond bit, operators must be careful to use the speed and pressure most appropriate for the application. Bit manufacturers often issue charts with recommended diamond bit types and sizes, along with pressure and speed recommendations.

Share
About Mechanics is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Mary McMahon
By Mary McMahon

Ever since she began contributing to the site several years ago, Mary has embraced the exciting challenge of being a About Mechanics researcher and writer. Mary has a liberal arts degree from Goddard College and spends her free time reading, cooking, and exploring the great outdoors.

Discussion Comments
By anon304342 — On Nov 19, 2012

What are the technical names of drill machines with bits.

Mary McMahon
Mary McMahon

Ever since she began contributing to the site several years ago, Mary has embraced the exciting challenge of being a...

Learn more
Share
https://www.aboutmechanics.com/what-is-a-diamond-bit.htm
Copy this link
About Mechanics, in your inbox

Our latest articles, guides, and more, delivered daily.

About Mechanics, in your inbox

Our latest articles, guides, and more, delivered daily.