Which type of bit has ridges known as flutes?

Carbide bits are specifically designed with ridges known as flutes that help in the effective filing and shaping of nails. The flutes enhance the bit's ability to remove material from the nail surface, allowing for more efficient manicuring and pedicuring. The design and material create a balance between durability and cutting precision, making carbide bits popular among nail technicians. This unique feature of flutes allows for better control while minimizing heat generation and reducing the risk of damaging the natural nail or surrounding skin during the filing process.