How to Drill Through Metal? – Best Drill Bits For Metal!

Being a handyperson can be both a daunting and a fun task. You have to experiment at the beginning with different tools until you become an expert in the field. For some, learning new tricks and tools is their hobby, while others might need it. Whichever it is for you, we must let you know that having the skills of a handyperson can save you from a lot of trouble in the future. You can experiment and fix things around your household without spending extra money on finding the right guy for the job.

How do you drill through metal?

The best way to drill through metal is to use a metal drill bit, such as a Cobalt drill bit. Additionally, drill through metal at a speed as slow as you can because metal drilling generates a lot of friction, which creates heat that damages the metal you are drilling into.

See below How to drill a hole in stainless steel:

So, what are the Best Drill Bits For Metal?

The best drill bits for metal are cobalt bits, which use an alloy including 5%–8% cobalt. Cobalt drill bits are often used to cut through hardened and abrasive materials.

How do you drill tiny holes?

The best option is to use gun drilling, which uses high speeds and low feed rates to drill tiny holes. The goal is to minimize runout and vibration when drilling small holes.

How to make a hole in metal without a drill?

To make a hole in metal without a drill, you need to center punch and hammer on a metal block. This will create a small dent where the metal has been previously marked. Hole punch pliers can also be used to make holes in metal without a drill.


You may have encountered some challenges during your work as a handyman. One situation might be drilling holes in a metal piece. This is also a different and challenging task that requires some careful steps to follow. This article will walk you through the steps to drill holes in a metal piece.

  1. Finding the right twist bits for the metal

Overall, you do not need to get any specific twist bit for the metal, and any twist bit will work fine. Twist bits are typically made of any metal, including drilling through plastic and wood. If you are looking for an inexpensive option, you should go for the high-speed step (HSS) twist bit, which is the most common. This one works well with all types of metal. Next comes the expensive options more suited to drilling through solid metals such as cast iron. These options include twisted bits made of cobalt steel or black oxide. Finally, some twist bits come with a special coating of titanium nitride, which helps create a twist bit that is heat resistant and helps in lessening friction.

2. Get Protective gear for your eyes

Whenever you plan on drilling the metal, you should ensure you have shielded your eyes to protect them from welding the metals. You should wear glasses for your safety to protect your eyes from any piece of metal going in. It would help if you remembered that any small metal piece in your eyes can cause severe damage to the cornea and may require medical attention.

3. Make a specific spot

Making a dimple or identifying a specific spot to drill before beginning is very important to ensure that the drill machine does not move from its place and that the drilling has been done from a specific point. You can also use a hammer to make a dimple yourself and then start the drilling.

4. Lubricate your metals

To make sure that there is less friction, you should apply lubrication to the metals. Many good quality cutting fluids are available in the shops, which help decrease the conflict when the drilling is done on metals. However, many metals, such as cast iron and stainless steel, do not require lubrication.

5. Use a clamp

You should always invest in a good-quality clamp to hold down the metal. You should never hold the metal with one hand and try to drill with another because the metal piece can slide here and there and cause severe injuries to your hand.

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6. Go from small to large

It would help if you always started with a small hole and then moved to the larger one to drill when you began drilling. If you have a twist bit of 1/4 inch and 1 inch, you should start by 1/4 inch.

7. Deburring

Knowing that you must de-bur the hole when drilling is essential to working with a clean surface. This means you should actively remove all residues to create a clean surface. There is a lot of fancy equipment available in the shops, but you can also take a twist bit with a larger diameter and try to press it in the hole with your hands. This is likely to remove all of the remaining residues.

8. For bigger holes

You can use a spot saw instead of a twist bit to drill the bigger holes. They are likely to get the job done quickly and are efficient to use as well. You can put a piece of wood behind the hole saw so as not to move from its position.

9. Drilling Speed

The drilling speed also ensures that the metal will be drilled perfectly. It would help if you constantly drilled at a low speed to get the drill machine too quickly. When the twist bit is run at high speed, it will likely dull the metal and get heated promptly. Some metals, such as stainless steel req, also require a plodding speed.

10. Use wood

To ensure that the drilled holes are elegant and precise, use wood in upward and downward positions. You should put the metal piece in between the wood pieces like a sandwich and drill it, then ensure that the drills are done neatly.

11. Step Bits

You can invest in a good quality step bit to drill neat and clean holes and effectively use thin metals. They are ideal for use in stainless steel as well.

12. Drill Press

A good quality drill press is usually the answer to all drilling queries and is used by most workers. This usually ensures that there is greater accuracy while drilling and work are done more efficiently and neatly in less time as well.


Mark Brown

Mark Brown

Mark Brown is a construction engineer from California who has been working as an independent contractor and writer for the past 15 years. From 2022 onwards, Mark has also been contributing author of home repair articles at Read more on Mark Brown's biography page. Contact Mark:

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