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Best 18V Cordless Circular Saw

The freedom and convenience of cordless power tools have revolutionized woodworking and construction. Among these, the 18v cordless circular saw stands out as a versatile and essential tool.

However, with a vast array of models available, selecting the best 18v cordless circular saw for your needs can be a daunting task. Choosing the right saw is critical.

A poorly chosen model can lead to frustration, wasted time, and subpar results. This review article aims to guide you through the selection process, focusing on the factors that truly matter: performance, battery life, durability, and overall value.

We understand the importance of investing in a tool that delivers both quality and long-term reliability. Discovering the best 18v cordless circular saw for your projects will improve your work.

Top 10 Best 18V Cordless Circular Saw Compared

Ryobi 18V 5-1/2

🏆 BEST OVERALL Ryobi 18V 5-1/2″ Circular Saw

  • Cordless convenience with Ryobi battery compatibility.
  • Suitable depth of cut for common lumber sizes.
  • Good portability for various job site locations.
  • Decent power for basic cutting tasks.
★★★★

4.4/5
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RYOBI ONE+ HP 18V Brushless Cordless 7-1/4 in. Cir

🥈 2ND RUNNER UP RYOBI ONE+ HP 18V Brushless Cordless 7-1/4 in. Cir

  • Faster cutting speed due to HP brushless motor.
  • Good battery life (over 325 cuts per charge – manufacturer claim).
  • Versatile with bevel capacity up to 56 degrees.
  • Includes hex wrench and vacuum dust adapter.
★★★★

4.5/5
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Makita XSS02Z 18V LXT Lithium-Ion Cordless 6-1/2

� BEST VALUE Makita XSS02Z 18V LXT Lithium-Ion Cordless 6-1/2″ Circular Saw

  • Powerful motor (3,700 RPM) for fast cutting.
  • Durable, precision-machined base for accurate cuts.
  • 50-degree bevel capacity offers versatility.
  • Lightweight design (7.3 lbs without battery) reduces fatigue.
★★★★

4.6/5
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Makita XSH03Z 18V LXT® Lithium-Ion Brushless Cordless 6-1/2

Makita XSH03Z 18V LXT® Lithium-Ion Brushless Cordless 6-1/2″ Circular Saw

  • Powerful brushless motor with 5,000 RPM.
  • Automatic Speed Change technology.
  • Brushless motor for longer life and cooler operation.
  • Efficient battery usage for extended runtime.
★★★★

4.4/5
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Makita XSH06PT 18V X2 LXT® Lithium-Ion (36V) Brush

Makita XSH06PT 18V X2 LXT® Lithium-Ion (36V) Brush

  • Powered by two LXT batteries for extended runtime.
  • Brushless motor for increased efficiency and lifespan.
  • High RPM (6,000) for fast cutting.
  • Automatic speed change technology for optimized performance.
★★★★

4.4/5
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Cordless Circular Saw 7-1/4

Cordless Circular Saw 7-1/4″ Compatible with Makita 18v Battery

  • Powerful brushless motor for efficient cutting and longer lifespan.
  • Laser guide for potentially improved cut accuracy (requires separate batteries).
  • Adjustable bevel and depth settings for versatile cutting.
  • Compatible with Makita 18V batteries, providing cordless convenience.
★★★★

4.4/5
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Makita XSH04ZB 18V LXT® Lithium-Ion Sub-Compact Brushless Cordless 6-1/2” Circular Saw

Makita XSH04ZB 18V LXT® Lithium-Ion Sub-Compact Brushless Cordless 6-1/2” Circular Saw

  • Compact and lightweight design enhances maneuverability.
  • Powerful brushless motor delivers efficient cutting performance.
  • Brushless motor offers longer life and cooler operation.
  • Good cutting and bevel capacity for versatile applications.
★★★★

4.3/5
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Ryobi One P505 18V Lithium Ion Cordless 5 1/2

Ryobi One P505 18V Lithium Ion Cordless 5 1/2″ 4

  • GRIPZONE overmold provides a secure and comfortable grip.
  • Transparent lower guard improves visibility.
  • Adjustable bevel allows for angled cuts up to 50 degrees.
  • Extra side handle provides enhanced control and stability.
★★★★

4.5/5
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M18 Cordless Lithium-Ion 6-1/2

M18 Cordless Lithium-Ion 6-1/2″ Circular Saw – 263

  • Powerful 3,500 RPM motor for efficient cutting.
  • Durable magnesium upper and lower guards.
  • Ergonomic soft-grip handle for comfortable use.
  • Lightweight and durable aircraft aluminum shoe for accuracy.
★★★★

4.6/5
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ZUYIYI 6 Inch Cordless Mini Circular Saw for Makita 18V Battery(Not Inclued)

ZUYIYI 6 Inch Cordless Mini Circular Saw for Makita 18V Battery(Not Inclued)

  • Compatible with Makita 18V batteries (batteries not included)
  • Powerful brushless motor with high RPM for efficient cutting
  • Adjustable cutting depth and angle for versatile use
  • Multiple safety features: double protection switch, overload, overheat protection
★★★★

4.4/5
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Detailed Reviews of the Best 18V Cordless Circular Saw

Ryobi 18V 5-1/2″ Circular Saw – Cordless convenience with Ryobi battery compatibility.

Ryobi 18V 5-1/2

The Ryobi 5-1/2″ cordless circular saw offers the convenience of portability with the Ryobi battery system. The 1-11/16″ depth of cut is suitable for standard lumber dimensions, making it useful for basic DIY projects and general carpentry tasks. While advertised as providing “fast cuts,” performance will largely depend on the type of wood and the sharpness of the blade.

This saw is a good option for users already invested in the Ryobi ecosystem due to its battery compatibility. However, those needing a saw for heavy-duty cutting or thicker materials may find its limitations significant. Overall build quality seems adequate for occasional use.

Pros

  • Cordless convenience with Ryobi battery compatibility.
  • Suitable depth of cut for common lumber sizes.
  • Good portability for various job site locations.
  • Decent power for basic cutting tasks.

Cons

  • Limited depth of cut compared to larger saws.
  • Cutting speed can vary depending on the wood type and blade sharpness.

RYOBI ONE+ HP 18V Brushless Cordless 7-1/4 in. Cir – Faster cutting speed due to HP brushless motor.

RYOBI ONE+ HP 18V Brushless Cordless 7-1/4 in. Cir

The Ryobi 18V ONE+ HP Brushless 7-1/4″ Circular Saw appears to be a solid cordless option for users already invested in the Ryobi ONE+ ecosystem. The HP brushless motor promises faster cutting speeds, and the claim of over 325 cuts per charge suggests decent battery life, though real-world usage will likely vary based on the material being cut and battery condition. The bevel capacity up to 56 degrees provides flexibility for angled cuts.

The inclusion of a hex wrench and vacuum dust adapter are welcome additions. Overall, this saw seems well-equipped for general DIY and light-duty professional tasks, assuming it lives up to its performance claims. It’s a worthwhile consideration if you need a cordless circular saw and already own Ryobi ONE+ batteries.

Pros

  • Faster cutting speed due to HP brushless motor.
  • Good battery life (over 325 cuts per charge – manufacturer claim).
  • Versatile with bevel capacity up to 56 degrees.
  • Includes hex wrench and vacuum dust adapter.

Cons

  • Battery life may vary depending on material and battery age.
  • Performance is dependent on utilizing Ryobi ONE+ batteries (not included).

Makita XSS02Z 18V LXT Lithium-Ion Cordless 6-1/2″ Circular Saw – Powerful motor (3,700 RPM) for fast cutting.

Makita XSS02Z 18V LXT Lithium-Ion Cordless 6-1/2

The Makita cordless circular saw promises efficient cutting with its 3,700 RPM motor, suitable for both cutting and ripping wood. The heavy-gauge, precision-machined base suggests good stability and accuracy. Its 50-degree bevel capacity provides versatility for angled cuts.

Weighing in at a manageable 7.3 pounds (without battery), it aims to minimize user fatigue during extended use. The 6-1/2 inch blade with a 2-1/4 inch cutting capacity is fairly standard and should cover common cutting needs. However, potential buyers should note that the battery is sold separately, increasing the overall cost.

Overall, this saw seems to offer a balance of power and portability for various woodworking tasks.

Pros

  • Powerful motor (3,700 RPM) for fast cutting.
  • Durable, precision-machined base for accurate cuts.
  • 50-degree bevel capacity offers versatility.
  • Lightweight design (7.3 lbs without battery) reduces fatigue.

Cons

  • Battery not included, requiring separate purchase.
  • 6-1/2 inch blade limits the cutting depth.

Makita XSH03Z 18V LXT® Lithium-Ion Brushless Cordless 6-1/2″ Circular Saw – Powerful brushless motor with 5,000 RPM.

Makita XSH03Z 18V LXT® Lithium-Ion Brushless Cordless 6-1/2

This Makita saw promises efficient and powerful cutting performance thanks to its brushless motor. The electronically controlled BL motor boasts a speed of 5,000 RPM, designed for faster cutting and ripping. The Automatic Speed Change technology is an interesting feature, aiming to optimize performance by adjusting speed and torque during operation.

The absence of carbon brushes in the BL motor should contribute to cooler operation and a longer lifespan. Makita claims up to 50% longer runtime per charge due to the motor’s efficient battery energy use. The motor is electronically controlled to match torque and RPM to the demands of the task.

Overall, it appears to be a promising tool for those who value power, efficiency, and battery life.

Pros

  • Powerful brushless motor with 5,000 RPM.
  • Automatic Speed Change technology.
  • Brushless motor for longer life and cooler operation.
  • Efficient battery usage for extended runtime.

Cons

  • Long-term durability of electronic components is unknown.
  • Actual runtime may vary depending on the cutting conditions and material.

Makita XSH06PT 18V X2 LXT® Lithium-Ion (36V) Brush – Powered by two LXT batteries for extended runtime.

Makita XSH06PT 18V X2 LXT® Lithium-Ion (36V) Brush

This cordless saw promises power and runtime thanks to its dual LXT battery system and brushless motor. The Makita-built BL motor boasts 6,000 RPM and claims to extend runtime by 50% compared to brushed alternatives. The absence of carbon brushes should lead to a cooler and more efficient operation, potentially extending the tool’s lifespan.

Automatic speed change technology is designed to optimize cutting performance by adjusting speed and torque dynamically based on the load. The manufacturer states impressive crosscut capacity on a single charge with 5.0Ah batteries. This could be a solid option for users already invested in the Makita LXT battery platform.

Pros

  • Powered by two LXT batteries for extended runtime.
  • Brushless motor for increased efficiency and lifespan.
  • High RPM (6,000) for fast cutting.
  • Automatic speed change technology for optimized performance.
  • Cordless convenience.

Cons

  • Requires two LXT batteries, which are sold separately.
  • Performance heavily reliant on battery condition and capacity.

Cordless Circular Saw 7-1/4″ Compatible with Makita 18v Battery – Powerful brushless motor for efficient cutting and longer lifespan.

Cordless Circular Saw 7-1/4

The Ecarke 7-1/4″ cordless circular saw offers a decent cutting experience, primarily due to its brushless motor which delivers a noticeable amount of power and should extend the tool’s lifespan. The laser guide, while potentially helpful for some, requires separate batteries which are not included and its usefulness will depend on user preference. The adjustable bevel and depth settings provide versatility for various cutting tasks, and compatibility with Makita 18V batteries is a definite plus for those already invested in that system.

The included blades (24T & 40T) are a nice addition, allowing for immediate use on different materials. The magnesium base and aluminum guard suggest reasonable durability. Remember to factor in the cost of batteries and a charger if you don’t already own compatible ones.

Pros

  • Powerful brushless motor for efficient cutting and longer lifespan.
  • Laser guide for potentially improved cut accuracy (requires separate batteries).
  • Adjustable bevel and depth settings for versatile cutting.
  • Compatible with Makita 18V batteries, providing cordless convenience.
  • Includes two blades (24T & 40T) for varied applications.
  • Rugged magnesium base and aluminum blade guard for added durability.

Cons

  • Battery and charger are NOT included, adding to the overall cost.
  • Laser guide requires separate AAA batteries (not included).

Makita XSH04ZB 18V LXT® Lithium-Ion Sub-Compact Brushless Cordless 6-1/2” Circular Saw – Compact and lightweight design enhances maneuverability.

Makita XSH04ZB 18V LXT® Lithium-Ion Sub-Compact Brushless Cordless 6-1/2” Circular Saw

The Makita cordless circular saw offers a compact and lightweight design, enhancing maneuverability and reducing user fatigue during extended use. Its blade-right configuration and overall length of just over 10 inches make it suitable for tight spaces. The saw’s brushless motor delivers a respectable 5,000 RPM, contributing to efficient cutting performance.

The absence of carbon brushes promises longer motor life and cooler operation. The cutting capacity of 2-1/4 inches at 90 degrees and bevel capacity up to 50 degrees provides versatility for various cutting applications. However, potential buyers should note that this is a tool-only purchase; the battery and charger are not included and must be purchased separately.

The included dust extraction attachment and blade are a welcome addition.

Pros

  • Compact and lightweight design enhances maneuverability.
  • Powerful brushless motor delivers efficient cutting performance.
  • Brushless motor offers longer life and cooler operation.
  • Good cutting and bevel capacity for versatile applications.
  • Includes dust extraction attachment and saw blade.

Cons

  • Battery and charger are not included, requiring separate purchase.

Ryobi One P505 18V Lithium Ion Cordless 5 1/2″ 4 – GRIPZONE overmold provides a secure and comfortable grip.

Ryobi One P505 18V Lithium Ion Cordless 5 1/2

The Ryobi cordless circular saw offers several features designed to enhance user experience and control. The GRIPZONE overmold on the handles provides a comfortable and secure grip, which is especially helpful during extended use. The transparent lower guard improves visibility of the cutting line, allowing for more precise cuts.

The adjustable bevel, which goes up to 50 degrees, adds versatility, enabling users to perform angled cuts for various projects. The inclusion of an extra side handle is a welcome addition, offering increased control and stability during operation. However, it’s important to note that this is a bare tool and does not include a battery, requiring users to already be invested in the Ryobi ONE+ system or purchase batteries separately.

Overall, it seems to be a decent option for those already in the Ryobi ecosystem.

Pros

  • GRIPZONE overmold provides a secure and comfortable grip.
  • Transparent lower guard improves visibility.
  • Adjustable bevel allows for angled cuts up to 50 degrees.
  • Extra side handle provides enhanced control and stability.
  • Compatible with Ryobi ONE+ 18V batteries.

Cons

  • Battery not included (bare tool).
  • Dependent on the Ryobi ONE+ battery system.

M18 Cordless Lithium-Ion 6-1/2″ Circular Saw – 263 – Powerful 3,500 RPM motor for efficient cutting.

M18 Cordless Lithium-Ion 6-1/2

This circular saw appears to be a solid option for both DIY enthusiasts and professionals. The 3,500 RPM motor provides ample power for tackling common construction materials. The magnesium guards offer a durable build, suggesting it can withstand jobsite wear and tear.

The soft-grip handle is a welcome addition, potentially reducing fatigue during extended use. The aluminum shoe should contribute to accurate cuts. While the description highlights its versatility across various trades, potential buyers should consider the blade size and availability when evaluating its suitability for specialized tasks.

Overall, it looks like a reliable tool for general cutting needs.

Pros

  • Powerful 3,500 RPM motor for efficient cutting.
  • Durable magnesium upper and lower guards.
  • Ergonomic soft-grip handle for comfortable use.
  • Lightweight and durable aircraft aluminum shoe for accuracy.
  • Versatile for plumbing, electrical, framing, and carpentry.

Cons

  • Blade size/type not specified, limiting versatility for specialized tasks.
  • No mention of dust collection or other convenience features.

ZUYIYI 6 Inch Cordless Mini Circular Saw for Makita 18V Battery(Not Inclued) – Compatible with Makita 18V batteries (batteries not included)

ZUYIYI 6 Inch Cordless Mini Circular Saw for Makita 18V Battery(Not Inclued)

This cordless circular saw offers the convenience of battery compatibility with Makita 18V batteries, making it a portable option for various projects. Its brushless motor delivers a high RPM for efficient cutting without sparks. The saw provides adjustable cutting depths and angles, which enhances its versatility for different woodworking tasks.

Safety features such as a double protection switch, overheat, and overload protection are included. Designed for cutting wood, soft metals, tiles, plastics, and PVC, this saw is well-suited for home decoration and DIY projects. Blade compatibility with 5-1/2, 5-3/8, and 6-inch blades with a 20mm arbor adds to its adaptable nature.

Keep in mind that batteries are not included and must be purchased separately.

Pros

  • Compatible with Makita 18V batteries (batteries not included)
  • Powerful brushless motor with high RPM for efficient cutting
  • Adjustable cutting depth and angle for versatile use
  • Multiple safety features: double protection switch, overload, overheat protection
  • Versatile cutting capability for wood, soft metals, tiles, plastics, and PVC

Cons

  • Batteries are not included, requiring a separate purchase
  • Relatively small cutting capacity may limit use for larger projects.

Buying Guide: What to Look For in a Best 18V Cordless Circular Saw

Understanding 18V Cordless Circular Saws

Choosing the best 18v cordless circular saw requires understanding their capabilities and limitations. These saws offer cordless convenience, powered by an 18-volt battery platform. They are ideal for various cutting tasks, from DIY projects to professional carpentry. Consider the blade size (typically 5-1/2″ to 7-1/4″), cutting depth, bevel capacity, and motor type (brushed vs. brushless). Brushless motors offer longer runtime and increased power. Portability and weight are also important factors, especially for extended use.

Key Features to Consider

Several key features differentiate the best 18v cordless circular saws. Battery compatibility is crucial if you already own tools from a specific brand. Look for features like adjustable bevel and depth settings for versatile cutting. RPM (revolutions per minute) indicates cutting speed, with higher RPMs generally resulting in faster cuts. A durable base and blade guard are essential for safety and accuracy. Consider additional features like dust extraction ports, laser guides, and LED work lights.

Choosing the Right Saw for Your Needs

The best 18v cordless circular saw for you depends on your specific needs. For basic DIY projects, a smaller, lighter saw with decent power may suffice. Professionals may require a more powerful saw with extended battery life and advanced features. Consider the types of materials you’ll be cutting (wood, metal, plastic) and the frequency of use. Think about ergonomics and comfort, especially if you’ll be using the saw for extended periods.

Brushed vs. Brushless Motors

Brushed and brushless motors are two common types used in 18v cordless circular saws. Brushed motors are generally less expensive but have a shorter lifespan and lower efficiency. Brushless motors offer longer runtime, increased power, and a longer lifespan. While brushless saws typically cost more upfront, they can save you money in the long run due to their increased efficiency and reduced maintenance.

Battery Life and Compatibility

Battery life is a critical consideration when selecting the best 18v cordless circular saw. Look for saws that offer good runtime per charge. Some saws are powered by two 18V batteries for even greater power and runtime. Battery compatibility is also important. If you already own tools from a specific brand, choosing a saw that uses the same battery platform can save you money and hassle. Consider the availability and cost of replacement batteries.

Frequently Asked Questions about Best 18V Cordless Circular Saw

What is the difference between a brushed and brushless 18v cordless circular saw motor?

Brushless motors are more efficient, durable, and powerful than brushed motors. Brushless motors use magnets and electronic controls rather than carbon brushes to turn the motor, which reduces friction and heat. This results in longer runtimes, increased power, and a longer lifespan for the motor. Brushed motors are less expensive but require more maintenance and have a shorter lifespan. The best 18v cordless circular saw often features a brushless motor.

How do I choose the right blade size for my 18v cordless circular saw?

The blade size determines the maximum cutting depth. Common sizes for 18v cordless circular saws are 5-1/2″, 6-1/2″, and 7-1/4″. A 7-1/4″ blade offers the greatest cutting depth, suitable for thicker lumber. Consider the types of materials you’ll be cutting. Smaller blades are more maneuverable, while larger blades provide greater cutting capacity. Choose a blade size that meets your typical cutting needs.

What is the importance of RPM (revolutions per minute) in a cordless circular saw?

RPM indicates the speed at which the blade rotates. A higher RPM generally results in faster and cleaner cuts. The best 18v cordless circular saw for heavy-duty tasks will have a higher RPM. However, RPM isn’t the only factor determining cutting performance. Motor power, blade quality, and material density also play a role. Consider the RPM rating along with other features when choosing a saw.

How does bevel capacity affect the versatility of an 18v cordless circular saw?

Bevel capacity refers to the maximum angle at which the blade can be tilted for angled cuts. A higher bevel capacity allows for more versatile cutting options, such as creating angled joints and bevel edges. Many 18v cordless circular saws offer a bevel capacity of up to 45 or 50 degrees. Consider your need for angled cuts when evaluating bevel capacity.

What are the key safety features to look for in a 18v cordless circular saw?

Key safety features include a blade guard, electric brake, and safety switch. The blade guard protects you from accidental contact with the blade. An electric brake quickly stops the blade after the trigger is released. A safety switch prevents accidental starts. Other safety features to consider include overload protection and dust extraction. Always wear safety glasses and hearing protection when using a best 18v cordless circular saw.

How important is battery compatibility when choosing a cordless circular saw?

Battery compatibility is crucial if you already own other cordless tools from the same brand. Choosing a saw that uses the same battery platform allows you to share batteries and chargers, saving you money and space. It also simplifies your tool collection. Many brands offer a range of tools that are compatible with their 18V battery system. The best 18v cordless circular saw for you may depend on your existing battery ecosystem.

What accessories should I consider purchasing with my 18v cordless circular saw?

Essential accessories include extra blades, safety glasses, and hearing protection. Different blades are designed for different materials, such as wood, metal, and plastic. A dust extraction adapter can help keep your work area clean. A carrying case can protect your saw during transport and storage. Consider investing in a quality rip fence for accurate straight cuts.

How do I maintain my 18v cordless circular saw to ensure its longevity?

Regular maintenance can extend the lifespan of your saw. Clean the saw regularly to remove dust and debris. Inspect the blade for damage and replace it when needed. Keep the battery contacts clean and dry. Store the saw in a dry place. Lubricate moving parts as needed. Following these maintenance tips will help your best 18v cordless circular saw perform optimally for years to come.

What are the advantages of a compact or sub-compact 18v cordless circular saw?

Compact and sub-compact saws are lighter and more maneuverable than full-size saws. This makes them ideal for working in tight spaces or overhead. They are also easier to transport and store. While they may not offer the same power as full-size saws, they are still capable of handling many common cutting tasks. Consider a compact saw if portability and maneuverability are important.

How do I ensure accurate cuts with my 18v cordless circular saw?

Use a guide or straight edge to ensure accurate cuts. A rip fence can help you make consistent parallel cuts. Check the blade alignment and adjust it if necessary. Use a sharp blade for clean cuts. Avoid forcing the saw through the material. Let the blade do the work. Practice on scrap material before cutting your final piece. Taking these steps can help you achieve accurate cuts every time.

Conclusion: The Final Verdict

The Ryobi 18V 5-1/2″ Circular Saw 5-1/2″ cordless circular saw is a practical choice for Ryobi battery platform users needing a portable and convenient cutting solution for light to medium-duty projects. If you require a saw for thicker materials or frequent heavy use, consider a corded model or a larger cordless option.