TiN coated drill bits are best suited for drilling more stubborn materials like iron, steel, aluminium and more. It is a more expensive coating than others, but helps to increase production rates and tool life.
Titanium Nitrate – This coating increases the hardness of the bit, whilst providing a thermal barrier for high friction applications.It can also be used with black oxide to better identify higher grades of HSS. It is normally used on its own so that it is easy to identify cobalt steel. Bronze Oxide – This coating increases stress relieving of the bit.It also helps in retaining drilling lubricants for longer and is most suitable when drilling iron and steel. Black Oxide – An economical coating that prevents corrosion and increases stress relieving at the bit.What coatings are used to enhance drill bits? Tool Steel with Tungsten Carbide Tips – TCT provide a longer working life for the bit, while allowing for a more stable and solid tip and enabling it to withstand more rigorous drilling applications.Cobalt Steel – The cobalt content increases the strength of the bit and aids in the resistance to heat and friction, so it can be used for more stubborn materials.HSS (High-Speed Steel) – HSS can withstand higher temperatures without compromising the hardness of the bit and is able to cut faster with more accuracy and efficiency.Carbon steel can withstand higher temperatures and is more suitable for harder materials. Carbon Steel – This material provides a drill bit with better durability and hardness, therefore increasing the life of the bit.What materials materials used for drill bits? Learn more in our complete guide to drill bit sets. Having the right size and the right type of bit is a key factor in ensuring the highest standard of work and ensures you can drill with confidence and accuracy. Drill bits are cutting tools that are used to remove different types of materials to create a hole, generally always in a circular motion.
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