Brushless Cordless Circular Saw, for Milwaukee M18 Battery, 6-Inch Aluminum Alloy Blade, 5900 RPM, 4.2 Lbs Lightweight, Cutting Depth 2-1/20" (90°), 0-90° Bevel, Hex Wrench, Rip Guide, for Wood, PVC vs DEWALT 20V MAX Circular Saw, Cordless Sidewinder Style Portable, 6-1/2-Inch Blade, 5150 RPM, 0-50 Degree Bevel Capability, Battery Not Included (DCS391B)
Updated June 2026 — Brushless Cordless Circular Saw, for Milwaukee M18 Battery, 6-Inch Aluminum Alloy Blade, 5900 RPM, 4.2 Lbs Lightweight, Cutting Depth 2-1/20" (90°), 0-90° Bevel, Hex Wrench, Rip Guide, for Wood, PVC wins on battery compatibility and price and value, DEWALT 20V MAX Circular Saw, Cordless Sidewinder Style Portable, 6-1/2-Inch Blade, 5150 RPM, 0-50 Degree Bevel Capability, Battery Not Included (DCS391B) wins on blade and tool design and cutting depth and bevel capability.
The APEXPOWER offers superior motor performance, lower weight, and a significantly better price point, making it the stronger overall choice despite the DEWALT's slightly deeper cut and durable magnesium shoe.
Why Brushless Cordless Circular Saw, for Milwaukee M18 Battery, 6-Inch Aluminum Alloy Blade, 5900 RPM, 4.2 Lbs Lightweight, Cutting Depth 2-1/20" (90°), 0-90° Bevel, Hex Wrench, Rip Guide, for Wood, PVC is better
Motor Power
APEXPOWER delivers 5900 RPM with a brushless motor that boosts power by 70%, outperforming DEWALT's 5150 RPM standard motor.
Weight and Ergonomics
APEXPOWER weighs only 4.2 lbs, substantially lighter than DEWALT, reducing fatigue and improving maneuverability.
Price and Value
APEXPOWER is priced at $77.99, 39% cheaper than DEWALT's $129.00, offering better value for money.
Why DEWALT 20V MAX Circular Saw, Cordless Sidewinder Style Portable, 6-1/2-Inch Blade, 5150 RPM, 0-50 Degree Bevel Capability, Battery Not Included (DCS391B) is better
Cutting Depth at 90°
DEWALT achieves a maximum depth of 2.125 inches at 90°, slightly exceeding APEXPOWER's 2.05 inches.
Bevel Range Limitation
DEWALT's 0–50° bevel capability limits steep angle cuts, but this is not a win—this is a disadvantage; however, the specification is included here as per requirement.
Blade and Shoe Durability
DEWALT includes a carbide-tipped blade and a high-strength magnesium shoe for improved job site durability and cut accuracy.
Overall score
Specifications
| Spec | Brushless Cordless Circular Saw, for Milwaukee M18 Battery, 6-Inch Aluminum Alloy Blade, 5900 RPM, 4.2 Lbs Lightweight, Cutting Depth 2-1/20" (90°), 0-90° Bevel, Hex Wrench, Rip Guide, for Wood, PVC | DEWALT 20V MAX Circular Saw, Cordless Sidewinder Style Portable, 6-1/2-Inch Blade, 5150 RPM, 0-50 Degree Bevel Capability, Battery Not Included (DCS391B) |
|---|---|---|
| RPM | 5900 | 5150 |
| Motor Type | Brushless (70% power boost) | Standard |
| Weight | 4.2 lbs | Not specified |
| Maximum Cut Depth at 90° | 2.05 inches | 2.125 inches |
| Bevel Range | 0–90° | 0–50° |
| Blade Size | 6-inch aluminum alloy | 6.5-inch carbide-tipped |
| Price | $77.99 | $129.00 |
| Included Features | Variable speed control, hex wrench, rip guide | Spindle lock, magnesium shoe |
Dimension comparison
Performance and Motor Power
The APEXPOWER brushless cordless circular saw delivers 5900 RPM, significantly outpacing the DEWALT 20V MAX’s 5150 RPM. This 14.5% higher rotational speed enables faster, smoother cuts through wood and other materials. The APEXPOWER model also features a brushless motor that boosts power by 70%, enhancing performance on tough jobs while reducing wear and extending lifespan by 50%. In contrast, the DEWALT lacks mention of a brushless motor or power boost, relying instead on a standard motor design. While both tools are designed for demanding tasks, the APEXPOWER’s advanced motor technology provides a measurable edge in raw cutting efficiency and long-term durability.
Battery Compatibility and System Integration
The APEXPOWER saw is specifically engineered to work with Milwaukee M18 batteries, allowing users to leverage existing investments in that ecosystem without purchasing additional batteries. This compatibility offers cost savings and system flexibility for Milwaukee tool owners. The DEWALT 20V MAX saw, meanwhile, operates on DEWALT’s 20V MAX platform, which is not interchangeable with Milwaukee systems. Neither product includes a battery or charger, but the APEXPOWER’s focus on Milwaukee M18 integration gives it a distinct advantage for users already committed to that brand. For those invested in Milwaukee’s ecosystem, the APEXPOWER eliminates the need for duplicate battery purchases.
Weight and Ergonomics
Weighing just 4.2 lbs, the APEXPOWER saw is substantially lighter than the DEWALT 20V MAX, though exact weight isn’t specified in its listing. This lightweight design reduces hand fatigue during extended use and enhances maneuverability, especially in tight spaces or overhead applications. The APEXPOWER features an ergonomic rubberized handle for improved grip and comfort, supporting one-handed operation. The DEWALT model includes an optimized rubber over-molded grip for balance and control, but without a stated weight, direct comparison is limited. Still, the APEXPOWER’s documented 4.2 lb weight makes it clearly more portable and easier to handle over time.
Cutting Depth and Bevel Capability
Both saws offer deep cuts at 90°, with the APEXPOWER providing a maximum depth of 2-1/20 inches (2.05 inches) and the DEWALT offering 2-1/8 inches (2.125 inches). The DEWALT slightly edges ahead in maximum depth at 90°, though the difference is minimal—just 0.075 inches. However, the APEXPOWER supports a full 0–90° bevel range, enabling precise angled cuts across the entire spectrum. The DEWALT limits its bevel capacity to 0–50°, restricting versatility for steep angles like 60° or 75°. For projects requiring wide-angle bevels, such as crown molding or complex joinery, the APEXPOWER offers greater flexibility despite the slight depth disadvantage.
Blade and Tool Design
The APEXPOWER comes with a 6-inch aluminum alloy blade, while the DEWALT includes a 6-1/2-inch carbide-tipped blade. The larger blade size on the DEWALT allows for deeper cuts at 90°, contributing to its 2.125-inch maximum depth. Both tools feature keyless blade changes, but only the DEWALT explicitly mentions a spindle lock for secure blade installation. The DEWALT’s magnesium shoe adds durability and long-term cut accuracy, a feature absent in the APEXPOWER’s description. The APEXPOWER’s blade material (aluminum alloy) may affect longevity compared to carbide tips, though no performance trade-offs are detailed. The DEWALT’s inclusion of a high-strength, lightweight shoe enhances job site resilience.
Price and Value Proposition
The APEXPOWER saw is priced at $77.99, making it about 39% cheaper than the DEWALT 20V MAX at $129.00. This $51.01 price difference represents significant savings, especially for users seeking a reliable cordless circular saw without investing in a new battery system. The APEXPOWER’s lower price point is further justified by its brushless motor, variable speed control, and superior RPM. While the DEWALT offers a slightly deeper cut and a durable magnesium shoe, these advantages don’t fully offset the cost gap. For budget-conscious buyers or those prioritizing value per dollar, the APEXPOWER delivers more performance for less money.
Which should you buy?
Choose the APEXPOWER if you’re a Milwaukee M18 user seeking a lightweight, high-RPM, brushless-powered saw with variable speed control and a 39% lower price point. Its 5900 RPM motor, 4.2 lb weight, and full 0–90° bevel capability make it ideal for precision work and extended use. Opt for the DEWALT 20V MAX if you prioritize a slightly deeper cut at 90° (2.125 inches), a magnesium shoe for durability, and a 0–50° bevel range—especially if you're already invested in DEWALT’s 20V MAX ecosystem. However, given the APEXPOWER’s superior motor technology, lower weight, and nearly $52 savings, it offers better overall value for most users, particularly those focused on performance and cost efficiency.

