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How to Drill Tool Steel?

How to Drill Tool Steel?

Tool steel is a type of steel that is used for tools and dies. It is much more complex than other types of steel, making it more challenging to drill through. But with the right approach and proper technique, you can quickly drill into tool steel without any problems. Here’s what you need to know about drilling tool steel.

Choosing the Right Drill Bits

The first step in drilling tool steel is to select the appropriate drill bit for your project. When choosing a drill bit, remember that standard high-speed steel (HSS) bits are not suitable for tool steel because they tend to wear out quickly when drilling through hard materials such as tool steel. Instead, it would help if you chose cobalt or carbide-tipped bits explicitly designed for hard materials like tool steel. These bits will last much longer and provide better results when drilling through rigid materials like tool steel.

Drilling with the Right Speed and Pressure

Once you have selected the appropriate drill bit, you must ensure that you use the right speed and pressure when drilling into your material. Regarding speed, it is essential to ensure that your drill is running at a slow pace so that it does not generate too much heat while drilling into the material. Too much heat can cause your fabric to become brittle and break during drilling, which could be dangerous. As far as pressure goes, you want to ensure that you are applying enough pressure so that your bit stays in contact with the material while also avoiding too much pressure, which can cause your fabric to crack or chip during drilling.

Cooling Your Bit During Drilling

One of the most important things to remember when drilling into tool steel is that it’s essential to keep your bit cool while you’re working on it. To do this, ensure you have plenty of cutting fluid handy so that you can apply it regularly during your drilling process. Cutting fluid helps keep your bit cool by dissipating heat from the tip, preventing it from becoming overheated and wearing down quickly. It also helps lubricate the area around the hole, which makes drilling more accessible and faster overall.


Drilling into tool steel requires a unique approach, as conventional HSS bits may not be suitable for this type of material due to its hardness. Make sure to choose cobalt or carbide-tipped bits when attempting this task, as these drills are specifically designed for hard materials like tool steel. Then adjust your speed and pressure accordingly while keeping an eye on your cutting fluid levels throughout each work session to ensure good results every time! With these tips in mind, anyone should be able to quickly learn how to drill into any rigid metal, like tool steel, with ease!

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