Disclaimer: All claims are strictly my personal opinion. As an Amazon Associate, I may earn from qualifying purchases.

DEWALT DCS391B Circular Saw 2021 Reviews & Guide

Are you searching for a robust and compact circular saw?

Then look no further, as the DEWALT DCS391B Circular Saw is the saw of your dreams. It has a compact design and amazing features.

Throughout this article, we will further explore this model to identify its best and worst attributes.

The DEWALT DCS391B Circular Saw Review

This model runs on 20V batteries. It has a maximum speed of 3700 RPM (rotations per minute),  and it has a standard six and ½ (six and a half) inch blade.


This model has a compact design. The magnesium shoe provides this product with increased durability. The saw’s grip is covered with a rubber mold; this will make you even more comfortable while handling the blade.


This model uses a battery. The battery needs to be installed on the bottom of the saw by pressing it against the saw. This battery received some upgrades from its predecessor.


This is one of the drawbacks of this model. You will not receive any accessories upon purchasing it except for the wrench. It does not even contain the battery that is used to power it. You will have to buy the battery separately.

The only piece of accessory that you receive with this model is the small wrench. It is useful to use during the process of changing or replacing blades. It is already placed at the saw’s rear, so you can remove it, use at any time, and then return it back to the saw without having to worry about losing it.

The fact that almost no accessories come with the saw is a disadvantage as almost all other circular saws come equipped with many accessories and add-ons such as different blades and many more.

Read also: Dewalt DWS779 vs. DWS780: Which is Better?

Safety Trigger

It is located at the top of the handle. You need to hold it using your thumb before pushing the main trigger. it is crucial for your safety. it is impossible to press on the main trigger before pressing on the safety one first. However, after pressing on both of them, you can let go of the safety, and only press on the main trigger.

Some people might find the placing of the safety trigger to be a bit uncomfortable, but we should remember that it is crucial for our safety and protection.


This model is suitable for all users. You can use it to its maximum efficiency, whether you are a DIY amateur or a professional. Its exceptional design and massive strength make it suitable for all projects. You can use it to cut small pieces and large pieces of wood alike without applying too much effort.


Your safety should be your top priority when operating a circular saw. You should always wear the appropriate safety gear. Safety goggles should always be worn as well as a dust mask if the project that you are tackling is dusty. You should always avoid wearing ties or jewellery while using any saw, as they might be tangled inside the saw, which will lead to significant injuries, as well as ruining your saw. You should always wear safety gloves to better protect your hands and your fingers from any cuts that might happen.


This product has fantastic features and a great design; however, its price is considered a disadvantage. As whenever you purchase this model, you will have to buy the battery separately as well as any other accessories such as different saws or an extra battery.

When you purchase the DEWALT DCS391B Circular Saw, and you purchase the battery separately, the price will amount to 100$ which is considered to be a bit steep for a circular saw.

Pros & Cons

  • Great Design
  • Safety Trigger
  • Powerful
  • Expensive
  • No accessories (Except the Wrench)

Final thoughts

Finally, it is safe to say that despite its relatively high price, this is a great model that is suitable for all users and all types of projects. Its powerful motor makes it suitable to finish any task quickly and without any hindrances, and the additional wrench (the only accessory) is an excellent addition to this model. 

Whether you are a professional or an amateur and you are looking for a power circular cordless saw, then the DEWALT DCS391B Circular Saw is an ideal saw for you.

John Graham

John Graham

I am a 35-year old avid DIY-er. Ever since I was young, my father used to prompt me to help fix things around the house or even building my own cupboards and shelves.
That’s why I developed the habit of doing everything on my own. And since this is the only way to reach the unique results I really want, I don’t like depending on any services.

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