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BLACK+DECKER 20V 5-1/2" Cordless Circular Saw, vs Milwaukee M18 Cordless Lithium-Ion 6-1/2" Circular Saw -

Updated July 2026 — BLACK+DECKER 20V 5-1/2" Cordless Circular Saw, wins on price and ease of use, Milwaukee M18 Cordless Lithium-Ion 6-1/2" Circular Saw - wins on durability and power.

The Milwaukee M18 Circular Saw offers superior performance and durability, making it the better choice for professionals, while the BLACK+DECKER is ideal for casual users.

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

Price

BLACK+DECKER is $19.01 cheaper

Weight

BLACK+DECKER is lighter and easier to handle

Ease of Use

Tool-free adjustments make it user-friendly

Why Milwaukee M18 Cordless Lithium-Ion 6-1/2" Circular Saw - is better

Power

Milwaukee has a 3,500 RPM motor for tough materials

Durability

Magnesium guards enhance longevity

Cutting Depth

Larger 6-1/2 inch blade allows for deeper cuts

Overall score

BLACK+DECKER 20V 5-1/2" Cordless Circular Saw,
75
Milwaukee M18 Cordless Lithium-Ion 6-1/2" Circular Saw -
88

Specifications

SpecBLACK+DECKER 20V 5-1/2" Cordless Circular Saw,Milwaukee M18 Cordless Lithium-Ion 6-1/2" Circular Saw -
Blade Size5-1/2 inch6-1/2 inch
RPM3,0003,500
Battery SystemPOWERCONNECTLITHIUM-ION
Tool-Free ChangeYesNo
Sales Rank10212017973

Dimension comparison

BLACK+DECKER 20V 5-1/2" Cordless Circular Saw,Milwaukee M18 Cordless Lithium-Ion 6-1/2" Circular Saw -

Overview of the BLACK+DECKER 20V 5-1/2" Cordless Circular Saw

The BLACK+DECKER 20V 5-1/2" Cordless Circular Saw is designed for versatility and ease of use. Priced at $74.99, this tool is about 17% cheaper than the Milwaukee saw. It features a fast-cutting 5-1/2-inch blade, making it suitable for a variety of DIY tasks. The saw allows for tool-free depth adjustment and blade changes, enhancing user convenience. With a sales rank of 102,120, it caters primarily to home improvement enthusiasts seeking a lightweight and compact option for their projects.

Overview of the M18 Cordless Lithium-Ion 6-1/2" Circular Saw

The M18 Cordless Lithium-Ion 6-1/2" Circular Saw, priced at $94.00, is tailored for professional use, providing powerful performance with a motor that delivers 3,500 RPM. This saw has a higher blade diameter, allowing for deeper cuts and versatility in tougher materials. With a sales rank of 17,973, it is a favorite among professionals in plumbing, electrical, and carpentry applications. The ergonomic design and durable magnesium guards add to its appeal, making it an excellent tool for those who require reliability and power in their work.

Cutting Performance

When it comes to cutting performance, the M18 Circular Saw outshines the BLACK+DECKER model. The Milwaukee saw’s 3,500 RPM motor is designed for quick and efficient cuts through tough materials like LVL headers, making it ideal for demanding tasks. In contrast, the BLACK+DECKER saw is equipped with a 5-1/2-inch blade, which is effective for general DIY tasks but may struggle with more robust applications. The larger 6-1/2-inch blade of the Milwaukee tool allows for deeper cuts, providing greater versatility for professionals.

Durability and Design

The M18 Circular Saw is built for durability, featuring magnesium upper and lower guards that protect the blade and enhance overall lifespan. This robust design is crucial for professionals who often work in challenging environments. Meanwhile, the BLACK+DECKER saw is more compact and lightweight, making it easier to handle for extended periods. However, it lacks the heavy-duty construction found in the Milwaukee model, which may be a consideration for users needing a tool that can withstand wear and tear over time.

Ease of Use

Both circular saws prioritize user convenience, but they cater to slightly different audiences. The BLACK+DECKER saw offers tool-free depth adjustment and blade changes, making it a great choice for DIY enthusiasts who appreciate simplicity. Its compact size also allows for easy maneuverability. On the other hand, the M18 Circular Saw, while slightly more complex, features an ergonomic grip for comfortable use and a lightweight aluminum shoe for precision in cut accuracy. This design is particularly appealing for professionals who value comfort during prolonged use.

Versatility of Applications

The versatility of both tools is notable, yet they excel in different areas. The BLACK+DECKER saw is ideal for a range of DIY tasks, such as home repairs and light construction, making it suitable for casual users. In contrast, the M18 Circular Saw is designed for a variety of professional applications, including plumbing, electrical, framing, and carpentry tasks. Its powerful motor and larger blade make it more adept at handling tougher materials, positioning it as the go-to option for demanding jobs.

Price Comparison

The BLACK+DECKER 20V saw is priced at $74.99, making it about $19.01 less expensive than the M18 Circular Saw, which retails for $94.00. This price difference can be significant for casual users or DIY enthusiasts who may not require the advanced features and power of the Milwaukee model. However, for professionals, the additional cost of the Milwaukee saw may be justified by its superior performance, durability, and versatility in handling various applications.

Which should you buy?

The choice between the BLACK+DECKER 20V 5-1/2" Cordless Circular Saw and the M18 Cordless Lithium-Ion 6-1/2" Circular Saw ultimately depends on your needs. If you are a DIY enthusiast looking for an affordable, user-friendly tool for light tasks, the BLACK+DECKER is a great option at $74.99. However, if you are a professional seeking a powerful, durable saw for more demanding applications, the Milwaukee model, priced at $94.00, is worth the investment given its enhanced cutting performance and robust design.