A circular saw is a handy tool that is commonly utilized for various woodworking projects. However, its capabilities are not limited to cutting wood. With the correct blade and technique, a circular saw can also cut metal. This begs the question, “Can a circular saw cut metal?” Let’s delve into the matter and uncover how best to use a circular saw for metal cutting.

What Metals Can a Circular Saw Cut?

A well-maintained metal-cutting circular saw is a versatile tool, capable of handling a variety of metals:

Steel

If you know which blade size to use based on the thickness of the steel, a circular saw can be quite effective. Blades with fewer teeth are ideal for cutting through steel sheets, while higher TPI blades are necessary for thicker pieces.

Aluminum

Aluminum, being a relatively soft metal, can be cut by a metal-cutting circular saw. Blades with carbide teeth are recommended for this task.

Iron

Though iron is a harder metal, it can still be cut using a circular saw. The thickness of the iron sheet will determine the suitable blade tooth count.

Brass

A circular saw can be a useful tool for cutting brass. However, because brass is a softer and gummy metal, use a blade with fewer teeth to prevent gumming.

Copper

Similar to brass, copper is a soft metal that can be cut by a circular saw. A blade with carbide teeth is best for cutting copper.

Choosing the Right Blade for Metal Cutting

To cut metals using a circular saw, you’ll need a metal cutting blade. These blades feature durable tungsten or high-speed steel materials that can easily cut through metal. Typically, a 7″ worm drive Circular Saw is effective for metal cutting. However, be sure to use the correctly sized blade with the appropriate TPI to prevent gumming.

How to Cut Metal With a Circular Saw? A Step-By-Step Guide

It’s crucial to follow the right process when using a circular saw to cut metal. Follow these steps for an efficient and safe metal cutting procedure:

Select the Right Circular Saw Blade: 

Choose the appropriate blade size for the metal you’re cutting. Remember, a thinner sheet requires a blade with a higher tooth count and vice versa. The blade should be made from suitable materials like carbide, steel, or tungsten.

Secure the Metal: 

Use clamps or a vise to secure the metal to the workbench. Clean the metal sheet to remove any debris and dust.

Mark the Cutting Line: 

Measure the metal sheet and mark a cutting line using a permanent marker. Ensure the line is precise to avoid issues after cutting.

Set the Saw Blade: 

Adjust the circular saw blade depth to match the thickness of the metal. If you’re making a bevel cut, adjust the cutting angle of the saw blade.

Wear Safety Gear: 

Safety should always be a priority. Wear safety gear like gloves, glasses, a mask, and earplugs.

Make the Cut: 

Turn on the saw and guide it along the cutting line. Maintain the same angle for the saw blade throughout the cut to avoid inaccuracies.

Finish the Cut and Clean Up:

Ensure the cut is complete before removing the blade from the metal. Clear any cutting debris with a hard bristle brush.

What is the Optimal Speed to Cut Metals Using a Circular Saw?

The optimal speed for cutting metal with a circular saw largely depends on the type of metal. Harder metals are typically cut at slower speeds, while softer metals can be cut faster. It’s always wise to refer to the manufacturer’s instructions when deciding the speed for cutting different materials.

Conclusion

In conclusion, a circular saw can indeed cut metal, provided the correct blade and techniques are used. Setting the right blade type and speed is crucial for safe and efficient metal cutting. Additionally, always remember to follow safety precautions to prevent accidental injuries. By following these tips and the manufacturer’s guidelines, you can cut metal with a circular saw both safely and efficiently.

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