Drill Bit Materials:
Certain tooling and machining operations require specialized drill bits that allow for effective drilling, without burning out too quickly. Below, you’ll find some common drill bit materials and their uses.
Cobalt (HSCO): Despite being more brittle than HSS, cobalt drill bits are ideal for drilling harder steel as well as stainless steel grades. They are often more expensive than other drill bits but tend to last longer.
Carbide (Carb): Carbide is considered the hardest and most brittle drill bit material and can cut hardened steel, stainless steel and aluminum with ease. Ask if the CoroDrill 860 from Sandvik Coromant is right for you.
Diamond: These bits are effective for drilling tile, stone or other hard material, and the use of water is recommended to prevent damage to the workpiece or tool. These are costly, so they are recommended for use in very specific tasks.
High-Speed Steel (HSS): High-Speed Steel bits are harder, more resistant to heat, and can drill metal at greater cutting speeds than high-carbon steel. Ask about our HSS drills from Morse or Drillco that are available in a variety of lengths, including jobber and stub/screw.