The best left-blade circular saw for most people is the DEWALT DCS565B 20V MAX 6-1/2 Inch Circular Saw because it offers perfect cutline visibility for right-handed users and brushless power in a compact design.
If you have ever struggled to see your cut line leaning over a standard saw, a left-blade circular saw changes everything. By positioning the blade on the left side of the motor, these saws give right-handed users a direct line of sight to the cut without contorting their bodies. This improves accuracy and safety. This guide draws on real workshop experience and tool research to help you find the right saw for your projects.
Quick Comparison: Best Circular Saws at a Glance
Here is a quick overview of the top models. Note that while this guide focuses on left-blade benefits, we have included popular right-blade models for comparison so you can choose the best orientation for your workflow.
| Model | Blade Side | Power Source | Best For | Key Benefit |
| DEWALT DCS565B | Left | 20V Cordless | DIY & General Use | Brushless motor & great visibility |
| DEWALT DCS391B | Left | 20V Cordless | Budget Cordless | Proven reliability & value |
| DEWALT DCS578B | Right | 60V Cordless | Heavy Duty Framing | Corded power without the cord |
| SKIL 5080-01 | Right | 13A Corded | Budget Wired | Affordable reliable power |
| DEWALT DWE575 | Right | 15A Corded | Pros (Corded) | Lightweight & durable |
Left-Blade vs Right-Blade Circular Saws
The debate between left-blade and right-blade circular saws usually comes down to visibility versus safety preference.
For a right-handed user, a left-blade saw places the blade on the inside of the arm. This means you can look straight down at the blade and the cutline. You do not have to lean over the saw housing to see where you are cutting. This makes following a pencil line extremely easy. However, it also means the dust ejects toward you, and the exposed blade is closer to your body.
In contrast, a right-blade saw (often called a sidewinder) places the motor between you and the blade. This blocks your view of the cutline unless you lean over. However, the blade is further from your body, and the main weight of the saw rests on the “keeper” piece of wood rather than the cutoff.
Many pros prefer left-blade saws (like worm drives or modern cordless 6-1/2 inch saws) specifically for that clear line of sight. It allows for faster, more accurate framing and ripping without constant stopping to check your line.
How to Choose the Best Left-Blade Circular Saw
When selecting a saw, you need to balance visibility with power and weight.
Power and Voltage
Cordless saws have caught up to corded power. A 20V system is sufficient for most DIYers and general contractors cutting 2x4s and plywood. If you do heavy framing all day, you might look at 60V options or high-amp corded saws. However, keep in mind that many powerful 7-1/4 inch sidewinders are right-blade by design.
Blade Size and Cutting Depth
The two most common sizes are 6-1/2 inch and 7-1/4 inch.
- 6-1/2 inch saws are typically left-blade. They are lighter and great for overhead work. They can cut through 2x material easily at 90 degrees.
- 7-1/4 inch saws are the industry standard. They offer deeper cuts and a huge blade variety. However, many sidewinder styles in this size are right-blade.
Bevel Capacity
Check the bevel capacity if you cut rafters or complex angles. Most good saws bevel to at least 50 degrees. Ensure the saw has a positive stop at 45 degrees for quick adjustments.
Weight and Ergonomics
A heavy saw reduces vibration but causes fatigue. If you are working on a roof or a ladder, a lighter saw like the DCS565 is safer to handle. Grip comfort matters too. You want a molded handle that provides a secure grip even when your hands are sweaty or gloved.
In-Depth Product Reviews
We have analyzed these top contenders to see how they perform in real-world scenarios.
1. DEWALT 20V MAX 6-1/2 Inch Circular Saw, DCS565B
Verdict: The best overall left-blade saw for DIYers and pros who want a modern, brushless tool.
This saw is the updated, brushless version of the classic 6-1/2 inch cutter. Because the blade is on the left, visibility is excellent for right-handed users. It is compact, aggressive, and efficient. The brushless motor extends runtime and provides more torque than older brushed models. It is perfect for cutting 2x4s, plywood, and siding.
Key Features:
- Blade Side: Left
- Power: 20V Brushless Motor
- Blade Size: 6-1/2 inch
- Bevel Capacity: Up to 50 degrees
- Brake: The electric brake stops the blade quickly
Pros:
- Excellent cutline visibility.
- Lightweight and easy to maneuver.
- Brushless motor runs cooler and longer.
- Rafter hook included for convenience.
Cons:
- Does not have the deep cut capacity of a 7-1/4 inch saw.
- Battery sold separately in this package.
2. DEWALT 20V MAX 6-1/2 Inch Circular Saw, DCS391B
Verdict: The best value left-blade cordless saw for homeowners and budget-conscious users.
The DCS391B has been a jobsite staple for years. It features a left-blade design that makes it very easy to learn on. While it uses a brushed motor (which is older technology than the DCS565), it is rugged and reliable. The magnesium shoe is durable and slides smoothly over wood. It has plenty of power for standard crosscuts and ripping sheet goods.
Key Features:
- Blade Side: Left
- Power: 20V Brushed Motor
- Blade Size: 6-1/2 inch
- Shoe: Magnesium for durability
- Bevel Capacity: 0 to 50 degrees
Pros:
- Very affordable entry price.
- Great visibility for right-handed cuts.
- Proven durability over many years.
- Comfortable rubber over-mold grip.
Cons:
- Brushed motor is less efficient than a brushless.
- Slightly heavier than newer compact models.
- The dust blower is average compared to newer saws.
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3. DEWALT FLEXVOLT 60V MAX 7-1/4 Inch Circular Saw, DCS578B
Verdict: The most powerful cordless option for heavy-duty framing, though it uses a right-blade design.
If you need raw power that rivals a corded worm drive, this is the beast you want. It uses the 60V FLEXVOLT system. Note that this specific model (DCS578) is a sidewinder with the blade on the right. While this reduces visibility for righties compared to the DCS565, the power is undeniable. It melts through LVL and dense lumber. We include it here because many pros upgrade to this platform for the torque, even if they sacrifice the left-blade view.
Key Features:
- Blade Side: Right
- Power: 60V FLEXVOLT Brushless
- Blade Size: 7-1/4 inch
- Capacity: Cuts 2-9/16 inch deep at 90 degrees
- Safety: Electronic brake
Pros:
- Incredible power replaces corded tools.
- Full-size 7-1/4 inch blade capacity.
- Runtime is exceptional with big batteries.
- Very fast cutting speed.
Cons:
- Right-blade design blocks the view for some users.
- Heavy and bulky for small jobs.
- Expensive battery platform.
4. SKIL 13 Amp 7-1/4 Inch Circular Saw, 5080-01
Verdict: The best budget corded saw for occasional garage projects.
The SKIL 5080-01 is a classic corded sidewinder. Like most corded saws in this class, it has the blade on the right. However, for the price, it is hard to beat. It is significantly lighter than older worm drives. While you lose the left-blade visibility, you get a dust blower that helps keep the line clear. It is a solid choice if you only cut wood a few times a year and do not want to worry about charging batteries.
Key Features:
- Blade Side: Right
- Power: 13 Amp Corded
- Blade Size: 7-1/4 inch
- Bevel: 51 degrees with positive stop at 45
- Safety: Power-on indicator
Pros:
- Extremely affordable.
- No batteries to charge or replace.
- Lightweight for a corded saw.
- Dust blower improves visibility.
Cons:
- Right-blade obscures cutline for righties.
- Cord limits mobility.
- Build quality is consumer-grade, not pro-grade.
View the latest deal on Amazon.
5. DEWALT 7-1/4 Inch Lightweight Circular Saw, DWE575
Verdict: A premium corded saw that balances weight and toughness for all-day use.
The DWE575 is a step up from the SKIL. It is designed for contractors who need a corded saw that won’t break their back. At only 8.8 lbs, it is one of the lightest in its class. Again, this is a right-blade sidewinder. However, the sightlines are engineered to be decent, and the ToughCord system prevents cord pull-outs. It is a reliable workhorse for framers who have power on site.
Key Features:
- Blade Side: Right
- Power: 15 Amp Motor
- Blade Size: 7-1/4 inch
- Bevel: 57 degrees capacity
- Depth: 2-9/16 inch cut depth
Pros:
- Pro-grade durability.
- Very lightweight for a 15-amp saw.
- Smooth guard operation prevents snagging.
- Deep cut capacity.
Cons:
- Right-blade layout.
- No electric brake.
- No LED light.
Use Cases and Recommendations
Different users have different needs. Here is our breakdown of which saw fits who.
- Best Left-Blade Circular Saw for DIYers: The DEWALT DCS565B. It is safe, easy to see, and powerful enough for any home project.
- Best Budget Option: The DEWALT DCS391B. You get the left-blade visibility benefits at a lower price point.
- Best for Heavy Framing (Power First): The DEWALT DCS578B. Even though it is right-bladed, the power is unmatched for ripping wet lumber or engineered beams.
- Best Budget Corded: The SKIL 5080-01. Good for the garage hobbyist who doesn’t mind the right-blade setup.
Cutting Tips for Left-Blade Saws
Using a left-blade saw is intuitive for visibility, but keep these tips in mind.
Stance and Grip
Since the blade is closer to you, stand slightly to the side of the cut path, not directly behind it. This keeps you clear of sawdust ejection. Hold the main handle firmly with your right hand and the auxiliary handle with your left.
Reading the Cutline
With the blade visible, trust your eyes. Watch the leading edge of the blade meet the pencil line. Most shoes have a notch indicating “0” and “45” degrees. However, with a left-blade saw, you can often ignore the notch and just watch the blade itself.
Blade Selection
Your saw is only as good as the blade. For framing, use a 24-tooth carbide blade. For plywood, switch to a 60-tooth ultra-fine finish blade. To learn more about selecting the right accessory, check out our guide on circular saw blades.
FAQs
What is the advantage of a left-blade circular saw?
The main advantage for a right-handed user is visibility. You can see the blade cutting the line without leaning over the tool. This improves accuracy and comfort.
Is a left-blade circular saw better for right-handed users?
For visibility, yes. Most right-handed users find it easier to follow a line with a left-blade saw. However, some prefer right-blade saws because the weight rests on the workpiece, and the blade is further from their body.
Are left-blade circular saws safer?
Safety is subjective here. You have better visibility, which reduces mistakes. However, the spinning blade is closer to your body, so you must be mindful of kickback and body positioning.
Which side-blade circular saw do most pros use?
It varies by region. West Coast framers often use worm drive saws (left-blade). East Coast framers often use sidewinders (right-blade). Cordless technology is making left-blade saws more common everywhere.
Can I switch from a right-blade to a left-blade saw easily?
Yes, but it takes a few cuts to adjust. The main difference is where the dust ejects and where you look to see the cutline.
What blade size is best for a left-blade circular saw?
Common left-blade cordless saws are 6-1/2 inches. This is lighter and sufficient for 2x lumber. If you need a 7-1/4 inch left-blade saw, you typically need to look at heavier worm drive styles or specific rear-handle cordless models.
Should I choose corded or cordless for a left-blade saw?
Cordless is the best way to get a compact left-blade saw today. Most corded left-blade saws are heavy worm drives. A 20V cordless saw offers the perfect balance of power and portability.
How do I keep the cutline visible when using a left-blade circular saw?
The design does most of the work for you. Additionally, ensure your saw has a working dust blower, or blow the dust away as you cut to keep your pencil mark clear.
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