
Dewalt DC390B Cordless Circular Review
The Dewalt DC390B cordless circular saw is a solid and very precise bare tool option. The cuts are clean, the saw is easy to use and particularly fast. This review will shed some light on the most important characteristics that turn Dewalt DC390B in a good addition to every handyman’s inventory.
Main Features
Dewalt DC390B is a 6.5-inch, 18V circular saw. Its impressive 3,700 rotations per minute determine just how and effective and powerful the circular saw is. The depth of the cut is 2.55 inches at 90 degrees and 1.9 inches at 45 degrees. The bevel capacity of the saw ranges from zero to 50 degrees.
Regardless of the fact that it’s quite powerful, Dewalt DC390B is also rather lightweight. The weight of the saw is only 6.3 pounds, which means that it can be held and used consistently for the execution of longer and more challenging projects. No battery charger is provided in the kit but Dewalt DC390B is compatible with DC9096 18-volt battery pack. It also works with the DW9117 charger. The charging time is approximately 15 minutes.
Several other features determine the effectiveness and practical appeal of the tool. The carbide-tipped blade is particularly tough. A magnesium shoe increases the strength and the stability of the saw even further. The motor is fan-cooled, which protects it against becoming overheated and enables the execution of even the toughest jobs.

Biggest Advantages
Most reviewers that bought and tried Dewalt DC390B for a medley of jobs were quite pleased with its performance. The saw has several key strengths that make it better than other tools in the same class.
The quality of the cut is exceptional. Dewalt DC390B can be used for both large and small DIY projects and it will deliver consistency. The weight of the saw also turns it in the ideal tool for day-long use. Even if extensive cutting takes place, the saw isn’t going to strain the arm of the user. Apart from being fan-cooled, the motor has one other interesting characteristic – replaceable brushes. Changing the brushes upon necessity will enhance the performance of Dewalt DC390B and extend the saw’s longevity.
This saw is ideal for the owners of other Dewalt tools. Thus, batteries and the charger can be used interchangeably, eliminating the need for additional purchases. Tough design and quality materials boost the price to quality ratio significantly. The saw isn’t going to experience any damage, even if it gets dropped accidentally. Months after intense usage, the saw doesn’t show any signs of wear and tear.
A Few Shortcomings
This circular cordless saw is practical and easy to use. Though it does get the job done each time, Dewalt DC390B has a few shortcomings that have to be mentioned.

The biggest problem is the life of the battery. If you plan on using the saw all day long, you will probably have to go through three or four battery packs. Most other cordless saws function in the same way, however, which means you probably already have an idea about this shortcoming.
A safety button is available and it has to be pressed at all times for the saw to work. For some users, this design specific posed some problems. The fact that the trigger had to be kept pressed at all times decreased the firmness of the grip and made it a bit more difficult to cut.
Dewalt DC390B is a lightweight and practical circular saw. The lack of a cord makes it much easier to use but the batteries need to be changed quite often. Best suited to the needs of DIY home users, Dewalt DC390B has also gotten the approval of some professionals (including carpenters).
Dewalt DC390B Review Score
Total Score
4.5 out of 5
Score taken from 437 customer reviews