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Metric High Speed Steel (HSS) Black Oxide 25 piece



  • Made from the highest grade HSS material
  • Manufactured to drill consistent holes through 10mm plate steel, black oxide assists with lubricity
  • 135° with relief ejects hot metal without damaging drill tip
  • Used in general fabrication, engineering & trade use.
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Product Description



Our drill bit set products are made from US steel and milled in Europe. They are excellent for drilling into hardened steel.

You may have been faced with a dilemma every time you set out to buy drill bits.  With so many cheap options, which ones are best for use on my project?  We distribute these black oxide sets to workshops and for customers who want to use at home.

The complexity in options in drill bit sets has made it that much more difficult to define quality.  Manufacturers to provide as many options as possible to ensure that you can find the right tool that fits your needs and the specifications of the job.

At some point, you will find yourself having to choose among an array of drill bits that all come with specific purposes. If you are not sure which type to get and would give you better value for money, the safest thing to do would be to invest in a black oxide drill bit set.

Titanium Nitride (TiN) and zinc coatings are less superior to Black Oxide, therefore, will not last as long. Black oxide is a popular coating material for ferrous materials (those prone to corrosion), stainless steel, copper, silver solder, zinc, and powdered metals.


With a black oxide drill bit set, you can expect nothing but a great turnout in your workpiece.  The quality is known to be extremely hard and capable of dissipating heat quickly. This is also one of the reasons why they are popular among metalworkers who are dealing with tough metals routinely.

Additionally, high-speed steel bits that are coated with black oxide have additional lubricity and corrosion-resistant properties.

Once you switch to using a black oxide drill bit set, you will never go back.

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