DeWalt DCS391P1 Review: A fantastic cordless circular saw!!

When it comes to power tools – especially cordless power tools – DeWalt seems to knock it out of the park with every new option they bring to the market.

These black and yellow tools are some of the most popular professional grade power tools with contractors, carpenters, tradesmen, and craftsmen around the world, and for good reason. Powerful, competent, consistent, and with a reputation for being finely constructed using only the highest grade components and materials available, it just doesn’t get all a lot better than this.

The DeWalt DCS391P1 is certainly one of the (if not THE) best cordless circular saws money can buy right now. Check out the rest of this quick review to find out why!

Initial Impressions

Like all other DeWalt power tools, this particular circular saw (cordless circular saw) has been engineered with professional craftspeople in mind above all others.

That means you’re going to get plenty of power out of this cordless unit. You’re going to get a heavy duty (and some would say flat out heavy) cordless circular saw that can chew through timber and 2x4s, 2x6s, 2x8s, and 2x12s (as well as 4 x 4 posts and more) without any trouble whatsoever.

This unit leverages a 20 V MAX lithium-ion 5.0 AH battery, the kind of brand-new lithium-ion battery technology that recharges from completely dead to completely full in about 90 minutes. You’ll be able to get eight full hours of consistent use out of this circular saw on a single charge. This circular saw kit doesn’t come with a rapid charger, though one is available and is definitely worth investing in.

Standout Features

One of the most impressive standout features that the DeWalt DCS391P1 leverages to separate itself from the rest of the pack has to be the almost effortless blade change out system that still offers safety, security, and stability.

This toolless system allows you to go from saw blades that are designed to rip through rough construction materials and plywood to those that can help you with your finish carpentry and then back again in about 45 seconds, all without having to search around for a bunch of tools that you don’t have on hand.

Another incredible feature has to be the high-strength yet very lightweight magnesium shoe that provides a lot of extra stability to your cutting surface without adding a bunch of extra weight to a cordless circular saw. The reason that so many people switch from corded circular saws to cordless circular saws (aside from having to drag those cords all over the job site) is because corded options are so heavy.

This saw is almost featherlight compared to most every other option out there!


  • Powerful 5250 RPM motor provides plenty of power and tremendous speed to sip right through almost every construction material imaginable, including rough carpentry materials like 2x4s and finished wood materials like stained oak.
  • Overall ergonomic design, magnesium shoe, and simplified control scheme makes it this circular saw effortless to operate in a variety of different situations and configuration spirit you’ll be able to use this as a workforce style circular saw, never really noticing any letdown in power or performance compared to some of the more expensive and heavier corded saws out there.

  • The toolless swapout of different blades makes it really easy to go from rough carpentry saws to finish carpentry saws and then back again without having to worry about hunting down tools and proprietary accessories that slow work down on the job site.


  • You are always going to have to pay a premium for DeWalt power tools, and this cordless circular saw is no exception. This particular model can be almost twice as expensive as some of the closest competitors, but if you are looking for a professional grade tool to be used in professional settings you simply can’t afford to cut any corners (no pun intended).
  • Weighing in at about 8 pounds or so, this definitely isn’t the lightest weight cordless circular saw you’re going to come across on the market today. As we highlighted above, this is a workhorse style tool, one designed for heavy duty application, so expect it to fatigue you at least a little bit as the work day goes on.
  • The lack of a rapid charging unit (or a second battery) in this particular kit is a bit of a downer, especially at this price point. You want to purchase both of these accessories, sold separately, to round out your investment in the DeWalt DCS391P1.

Who’s going to be able to get the most out of this tool?

With plenty of different cordless circular saw options available on the market today there is a bunch of stiff competition going up against the DeWalt DCS391P1.

But if you are a professional that relies on your power tools to earn a paycheck, or if you are serious about only using the highest quality cordless power tools to round out your arsenal in your home workshop, you probably won’t find many other options out there better than this DeWalt.

Capable, consistent, and with one of the best warranties in the business – not to mention the sterling silver reputation for DeWalt power tools in the construction and trade industries – there aren’t too terribly many other premium level cordless circular saws that can come close to everything the DeWalt DCS391P1 offers.

Professionals will be able to get the very most out of this cordless circular some, but amateurs, hobbyists, and woodworkers will also be able to unleash the power and performance brought on by this tool.

Final Verdict

At the end of the day, professionals need to be able to count on the power tools that they have to get the job done right the first time around, and that’s exactly what the DeWalt DCS391P1 is going to make happen.

Yes, you’re going to have to pony up a little bit of extra cash upfront to get the most out of this DeWalt power tool but many would agree that it is worth every single penny. We think you will, too.