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ALLOYMAN 20V Cordless Mini Circular Saw, Brushless vs BLACK+DECKER 20V 5-1/2" Cordless Circular Saw,

Updated July 2026 — ALLOYMAN 20V Cordless Mini Circular Saw, Brushless wins on rpm and price, BLACK+DECKER 20V 5-1/2" Cordless Circular Saw, wins on blade size.

The ALLOYMAN offers superior speed and advanced cutting features, while the BLACK+DECKER is more budget-friendly and versatile for general tasks.

Why ALLOYMAN 20V Cordless Mini Circular Saw, Brushless is better

Speed

ALLOYMAN has a brushless motor with 18,000 RPM.

Cutting Features

ALLOYMAN offers forward and reverse cutting direction.

Precision

ALLOYMAN provides precise depth control.

Why BLACK+DECKER 20V 5-1/2" Cordless Circular Saw, is better

Price

BLACK+DECKER is $5 cheaper.

Versatility

BLACK+DECKER has a larger 5-1/2 inch blade.

Ease of Use

BLACK+DECKER features tool-free adjustments.

Overall score

ALLOYMAN 20V Cordless Mini Circular Saw, Brushless
85
BLACK+DECKER 20V 5-1/2" Cordless Circular Saw,
78

Specifications

SpecALLOYMAN 20V Cordless Mini Circular Saw, BrushlessBLACK+DECKER 20V 5-1/2" Cordless Circular Saw,
Motor TypeBrushlessHigh Torque
Cutting DirectionForward/ReverseFixed
Tool-Free AdjustNoYes
Included Blades31
Battery System2x 4.0AhPOWERCONNECT

Dimension comparison

ALLOYMAN 20V Cordless Mini Circular Saw, BrushlessBLACK+DECKER 20V 5-1/2" Cordless Circular Saw,

Price Comparison

The BLACK+DECKER 20V 5-1/2" Cordless Circular Saw is about 6% cheaper than the ALLOYMAN 20V Cordless Mini Circular Saw. Priced at $74.99, the BLACK+DECKER model offers a compelling option for budget-conscious consumers. In contrast, the ALLOYMAN model is available for $79.99. While the price difference may not seem significant, it could influence buyers looking for a reliable tool without breaking the bank. Both products are positioned in the mid-range market, but the cost savings of the BLACK+DECKER may appeal to DIY enthusiasts or those undertaking smaller projects.

Power and Performance

The ALLOYMAN 20V Cordless Mini Circular Saw features a robust brushless motor that delivers up to 18,000 RPM, providing fast and clean cuts across various materials. This high-performance capability is ideal for those seeking efficiency in their cutting tasks. On the other hand, the BLACK+DECKER 20V saw is equipped with a high torque motor, but specific RPM figures are not detailed. While it may not match the ALLOYMAN's speed, it remains effective for a range of DIY tasks. The ALLOYMAN's superior speed may be a deciding factor for users needing precision and quick results in demanding applications.

Blade Size and Versatility

The ALLOYMAN saw is designed with a compact 3-inch blade, making it suitable for tight spaces and overhead work, while the BLACK+DECKER features a 5-1/2 inch blade. This larger blade on the BLACK+DECKER allows for faster cutting in various applications, making it more versatile for general home improvement projects. The ALLOYMAN's smaller blade is ideal for detailed work, but it might not handle larger cuts as efficiently as the BLACK+DECKER. Users should consider their specific project requirements when choosing between the two, as blade size impacts both performance and versatility.

Cutting Features

The ALLOYMAN saw offers advanced cutting features, including a forward and reverse cutting direction, which enhances safety and control by allowing users to push the tool away from their bodies. This feature is particularly beneficial in tight spaces or awkward angles. The BLACK+DECKER saw provides tool-free depth adjustment and an angled cut capability with level detents at 45 and 90 degrees, offering ease of use for angled cuts. Both tools provide unique advantages in terms of control and safety, but the ALLOYMAN's innovative cutting direction may appeal more to those focused on safety in challenging cutting environments.

Ease of Use

The BLACK+DECKER 20V saw emphasizes user convenience with its tool-free depth adjustment and blade change features, allowing for quick adjustments without the need for additional tools. This design enhances the overall user experience, particularly for those who value efficiency. In comparison, while the ALLOYMAN saw does not explicitly mention tool-free adjustments, its compact design and stable base shoe contribute to ease of handling during operation. Users who prioritize speed and convenience may gravitate towards the BLACK+DECKER for its straightforward usability.

Battery System

The BLACK+DECKER saw utilizes the POWERCONNECT battery system, which allows for interchangeable batteries across multiple tools within the same range. This feature is advantageous for users who already own BLACK+DECKER tools and prefer a unified battery system. The ALLOYMAN saw comes with two 4.0Ah batteries, ensuring that users have ample power for extended cutting sessions without needing to switch batteries frequently. While both systems have their merits, the BLACK+DECKER's system may appeal to those looking for compatibility with a wider range of tools, whereas the ALLOYMAN's included batteries provide immediate usability right out of the box.

Weight and Portability

While specific weight details are not provided, the ALLOYMAN's compact 3-inch design suggests it may be lighter and more portable than the BLACK+DECKER, which has a larger 5-1/2 inch blade. This portability can be crucial for users who need to transport their tools to different job sites or work in confined spaces. However, the BLACK+DECKER's design still aims for ease of use and maneuverability, especially for general DIY projects. Ultimately, users should consider the nature of their projects and whether portability or blade size is more important for their needs.

Which should you buy?

Choosing between the ALLOYMAN 20V Cordless Mini Circular Saw and the BLACK+DECKER 20V 5-1/2" Cordless Circular Saw boils down to specific needs and preferences. If you prioritize speed, precision, and safety features like forward and reverse cutting, the ALLOYMAN may be the better choice, despite its higher price of $79.99. However, if you're looking for a cost-effective, versatile tool for general DIY tasks, the BLACK+DECKER at $74.99 is a solid option with user-friendly features. Consider your project requirements, budget, and whether you value advanced cutting capabilities or broader versatility when making your decision.