DEWALT 20V MAX Cordless Circular Saw 6.5in

Detailed Review

The DEWALT 20V MAX Cordless Circular Saw (DCS391B) brings professional-grade cutting capability to DIYers and contractors who value portability and precision. With its 5,150 RPM motor and 6.5-inch carbide-tipped blade, this sidewinder-style saw handles demanding cuts in lumber and sheet goods efficiently. The lightweight magnesium shoe keeps the tool balanced and manageable during extended use, while the ergonomic rubber over-molded grip reduces hand fatigue when working overhead or in awkward positions.

Versatility is a strong suit of this model. The 0-50 degree bevel capability opens up applications beyond standard 90-degree crosscuts, making it suitable for crown molding installation, deck building, and angled framing work. Maximum cut depth reaches 2.125 inches at 90 degrees and 1.625 inches at 45 degrees, which handles most residential and light commercial framing tasks. The keyless blade change and spindle lock mechanism speed up blade swaps without requiring additional tools, keeping your workflow moving efficiently on the job site.

As a 20V MAX tool, the DCS391B integrates into DEWALT's broader battery ecosystem, allowing you to share batteries across multiple tools if you already own other 20V equipment. However, prospective buyers should note that batteries and charger are sold separately, representing a meaningful additional investment. The compact design and lightweight construction make this saw particularly valuable for overhead work and applications where maneuverability matters, though the smaller blade size limits maximum cutting depth compared to full-size circular saws.

Key Features

• Powerful 5,150 RPM motor cuts through lumber and sheet goods with consistent speed and precision
• Lightweight magnesium shoe reduces fatigue during extended cutting sessions while maintaining durability
• 0-50 degree bevel range enables aggressive angled cuts for diverse woodworking and construction applications
• Keyless blade change and spindle lock simplify blade swaps and reduce downtime on the job
• Compact 6.5-inch design with comfort grip provides excellent control and maneuverability in tight spaces
• Cuts 2x material thickness at 90 degrees and 45 degrees with included 18-tooth carbide-tipped blade
• Part of the 20V MAX system, compatible with DEWALT's extensive battery and charger ecosystem

Specifications