DEWALT DCS570B vs DCS575B vs Dcs391B Circular Saw

It is always nice to see what DeWalt as a brand can offer when comparing products from the same category.

This time round, we want to look at cordless circular saws from DeWalt. These circular saws include the DCS570B, DCS575B, and DCS391B models.

If you want the best cordless circular saw, look at its overall performance, the motor technology, it is battery capacity, the weight, accuracy, and maneuverability.

Quick Summary

The DCS570B unit is for those who need a versatile and professional cordless circular saw. It has a full-size blade that ensures more cutting capabilities.

The DCS575B is for someone who wants the best battery capacity and performance. Its battery gives you more runtime so that you can work on various projects without recharging so often.

As for the DCS391B unit, it will be best for newbies and those who need to work on light to medium projects. It is also lightweight to improve the overall portability anyone would want.

The Comparison

DeWalt DCS570B Cordless Circular Saw

DEWALT 20V MAX 7-1/4-Inch Circular Saw with Brake, Tool Only (DCS570B)

A cordless circular saw will have multiple advantages over a corded unit. However, what makes the DeWalt DCS570B stand out? Here are some of its top features.

The Blade Brake

You might be used to the mechanical blade brakes, but the one on this unit is electronic. The aim of the electronic blade is to help the unit stop faster. It also helps to reduce the chances of damaging the workpiece or injuring yourself.

DEWALT 20V MAX 7-1/4-Inch Circular Saw with Brake, Tool Only (DCS570B)


The brushless motor of the saw can run up to 5200 RPM. Such a speed is ideal for those looking to achieve clean cuts. You should also expect it to maintain such good speeds even when cutting though tough materials.

The motor drives a full-size blade of 7.25 inches. The blade provides the user with a depth cut of 2-9/16 inches. It should be easy to cut through thick workpieces with just one pass if you have such a cut depth.

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The ergonomics of this tool are on another level. The handle is designed in a way that allows for a firm grip. It should make it easier to work on your workpiece, even with your gloves on. The trigger is also easy to reach with your hand around the handle.

Ergonomics also improve the overall adjustability of the unit. It is easy to set the bevel angle, change the blade, and do so much more. It can bevel up to 57 degrees.

What We Like

  • It features a powerful motor
  • It offers an impressive cut depth
  • The model is easy to adjust and use

What We Don’t Like

  • Lacks a rafter hook

The Solution: Some would want a rafter hook to easily hook the unit to their waist. However, it is lightweight enough to allow for portability even when you need to use it on higher grounds.

DeWalt DCS575SB Flexvolt Circular Saw

DEWALT DCS575B FLEXVOLT 60V MAX Lithium-Ion Brushless 7 1/4" Circular Saw (Bare Tool)

This is another cordless DeWalt circular saw. Let us see how the DCS575SB compares with the other model mentioned above.


This is a nice choice for many because it is compact. It weighs around 7.5 pounds. It should be easy to see why most would want it. The mentioned weight is when the battery and other accessories have been installed. The compact nature allows for it to be tossed into the contractor bag each time you need it at a job site.

Switching of Blades

Considering that at some point you have to switch the blades, you would want the process to be simple. That is what you get when you use this model. It is designed to allow you to switch out the old blade faster. The spindle lock is easy to operate whenever switching the blades. It does not need any special skills to get the old blade out and a new one in.

DEWALT DCS575B FLEXVOLT 60V MAX Lithium-Ion Brushless 7 1/4" Circular Saw (Bare Tool)


The unit comes with an aluminum shoe. This type of construction is all about durability. Considering it is also thick at 5/32 inches, it is able to live up to any abuse the owner might subject it to. It is going to be an ideal tool to keep using for years to come.

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Good performance

It offers good performance once you pair it with the 6.0Ah Flexvolt battery. This type of battery offers more charge for you to work on projects for longer. As part of the performance, the brushless motor does not use a lot of energy while at the same time offering a lot more power output.

What We Like

  • It is easy to switch blades
  • The motor is powerful to handle thick materials
  • The overall construction is rigid for durability

What We Don’t Like

  • The circular saw’s depth scale is not colored

The Solution: The scale might not be visible in low light conditions, but you can get yourself a flashlight and work with it in such conditions.

DeWalt DCS391B-20Volt Circular Saw

DEWALT 6-1/2-Inch 20V Max Circular Saw, Tool Only (DCS391B),Yellow

If you are still looking for a top DeWalt cordless circular saw, this is another top consideration. The DCS391B is often a good choice for newbies who need to work on lighter projects. Below are more reasons you get it.


The circular saw is powerful considering that it delivers an output of 460MWO spinning the blade at 5150RPM. For this reason, it should make cutting through the various materials easier and faster. The high speed of the blade also means you end up with clean and quality cuts.

Shoe Construction

The shoe of this unit is made of high strength and lightweight magnesium material. Such a material is important for increasing the overall durability of the model. You will also get better accuracy when you have a dependable construction of the unit.

Bevel Capacity

The circular saw can bevel up to 50 degrees. This capacity is enough to accommodate most of the cuts you are likely to have when working at a construction site.

DEWALT 6-1/2-Inch 20V Max Circular Saw, Tool Only (DCS391B),Yellow

Comfortable Grip

The unit features an overmolded comfortable grip. This type of grip is good for delivering optimal balance and control. You can feel that it fits properly in your hand and you are able to control the saw better.

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The blade is 6.5 inches in diameter. Such a blade is enough to work on several workpieces you might have. Also, it comes with carbide tips to improve its sharpness, durability, and offer quality cuts always.

What We Like

  • It is a highly durable unit for the price
  • The motor is powerful
  • It is lightweight for portability

What We Don’t Like

  • It tends to have occasional blade jams

The Solution: To avoid this problem, make sure the blade is correctly installed. Also, occasional tightening of the lock holding the blade in place eliminates this problem.

Which is Better?

To decide which is better, we have to look at what is similar and different among these three saws. Starting with similarities, all the three have a brushless motor spinning at an average of 5200RPM. Such powerful brushless motors help the user achieve clean and consistent cuts all the time. Also, brushless motors use less power, which should be ideal for anyone working with a cordless circular saw.

These models however differ in terms of cutting capabilities. The DCS570B and DCS575B models stand out for having the best cutting depth and capabilities. We would recommend either one for someone who is not sure about which to choose. The DCS391B unit is still good, but the other two are better when it comes to where you can apply the saws.

Final Thoughts

Working on different projects requires that you have the right tools. For the three circular saws reviewed above, we find that they can be applied to different job sites. It comes down to what activities you want to accomplish. The DCS570B and DCS575B models are best suited for heavy duty applications. The DCS391B unit is best for light to medium applications.