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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)

  • Based on 11,052 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, Jun 26
Order within 21 hours and 23 minutes
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Color: Yellow


Size: 6-1/2 inches


Features

  • 5150 RPM motor delivers power and speed to make the most demanding cuts with ease
  • High strength and lightweight magnesium shoe provides jobsite durability for long-term cut accuracy
  • Optimized rubber over molded comfort grip delivers optimal balance and control of electric saw for wood cutting
  • 0-50 bevel capacity allows for aggressive bevel cuts for a multitude of applications
  • 6-1/2 inch 18-tooth carbide-tipped blade included for cutting 2 times material at 90 and 45 and more cuts per charge. Maximum cut depth @ 90: 2-1/8 inches (2.125 in). Maximum cut depth @ 45: 1-5/8 inches (1.625 in)
  • 3 Year Limited Warranty
  • Keyless blade change, spindle lock
  • Ideal as woodworking tool and construction jobs requiring portability and precise cuts
  • Wood saw electric delivers sufficient speed and power for lumber and sheet goods

Description

Make demanding cuts with ease using the 20V MAX 6-1/2 in. Circular Saw. Featuring a 6-1/2 in. carbide-tipped blade powered by a powerful 5,150 rpm motor, this lightweight wood cutter offers a 0 to 50 bevel capacity for maximum versatility of an electric hand saw. Battery & Charger Sold Separately

Brand: DEWALT


Color: Yellow


Blade Material: High Speed Steel


Surface Recommendation: Wood


Power Source: Battery Powered


Power Source: Battery Powered


Other Special Features of the Product: Keyless Blade Change


Voltage: 20 Volts


Speed: 5100 RPM


Number of Teeth: 18


Number of Batteries: 1 Lithium Ion batteries required.


Cutting Angle: 50 Degrees


Blade Shape: Round


Surface Recommendation: Wood


Warranty Type: Limited Warranty


Specification Met: (unset)


Item Dimensions L x W x H: 15.5"L x 8.5"W x 10.5"H


Item Weight: 3.16 Kilograms


Blade Length: 6.5 Inches


Color: Yellow


Brand Name: DEWALT


Included Components: 20v 6-1/2" circular saw


Model Number: DCS391B


Manufacturer Warranty Description: 3 Year Limited Warranty


Global Trade Identification Number: 54


UPC: 885911262354


Manufacturer Part Number: DCS391B


Manufacturer: DEWALT


Item Type Name: 20V MAX Li-Ion Circular Saw


Unit Count: 1.0 Count


Blade Material: High Speed Steel


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jun 26

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • With the right blades, this is a honey of a saw.
Color: Yellow Size: 6-1/2 inches
I really like this saw and rechargeable system. Is it possible to love a saw? I have several tools that use the 20-volt batteries, including the 20-volt rotary hammer and 3 different chargers, as well as the 12-volt vehicle charger so I can recharge the compatible hand-held flashlight and flood light for road emergencies or anywhere I need to see in the dark. I carry them wherever I drive. One never knows. As with any saw, using a sharp blade appropriate for the material one is cutting is always the most important measure to ensure top performance. I have this saw paired with the premium 5Ah & 4Ah batteries and a selection of blades for different materials, some Dewalts and some Diablos (my favorite blades). It fully exceeds my expectations. It will cut all day and then some. It's light and extremely portable, and it tears through solid oak and maple like it's going through soft butter. There is a small "learning curve," as one becomes comfortable with the saw blade on the left side of the tool, as viewed from the operator's perspective. The corded saws I've always used have the blade on the right side, but it doesn't take long to adapt to this configuration. Without a doubt, this saw is my favorite power tool followed by the rotary hammer, which is a close second. The only (small) source of disappointment is that it's shipped without a rip fence. For the life of me, this seems rather cheap behavior on the part of DeWalt, a manufacturer of quality tools that usually doesn't cut corners in my experience. My guess is that it would probably only have cost DeWalt a few extra pennies to have included the rip fence with the tool rather than inconvenience customers with the necessity of purchasing it separately upon discovering this admittedly minor deficiency. The rip fence is available on Amazon for about thirteen dollars as I write, so that issue can be readily addressed. It seems odd, though, and the discovery of the absence of a rip fence in the package might lower the perception of value for some customers. With shipping charges and sales tax, it could easily add $15-20 to the total cost of the saw. Of course, if one does not intend to rip, one might elect to skip it, but that could be short-sighted. From my perspective, one never knows if the rip fence might be needed in the future and there could come a time when it may not be as readily available, so my choice was to make the purchase so as to have it on hand for any contingency. I'm so pleased with this saw that I'm thinking of purchasing the Dewalt 36-volt cordless saw as well. The 36-volt tool uses full-sized 7¼ blades and has even more power than the 20-volt model, thus allowing one to cut thicker material, likely with even greater battery charge longevity, but I digress. To be clear, the reviewed model (20-volt) will meet the needs of the vast majority of those looking for a well-performing portable saw without the encumbrances presented by a cord and its not as heavy as the 36-volt model. I think there's some good news if I decide to purchase the larger model as well in that the rip fence appears to be interchangeable between the two saws, so that assuages the issue from my perspective. Anything I would add would be all good, however it should be obvious that I'm pleased to have made the purchase of this quality DeWalt product. ... show more
Reviewed in the United States on December 20, 2014 by Ellis Guy

  • Profesional Quality Skill Saw!!! (At a Great Price)
Color: Yellow Size: 6-1/2 inches
This skill saw is a great addition to DeWalts 20V Max line of tools. My first reaction after using this skill saw for a while, was just WOW, this thing is Amazing!!! The motor they use is smooth as silk, and powerful. I was hoping to wait till DeWalt incorporated there brushless motor into this skill saw. But I needed it, so I bought it. Man am I happy I did, I really LOVE this skill saw! This is a superb saw! It has all of the features and power of a Top Quality corded skill saw, and it's light weight, with the 4Ah & 5Ah batteries, it does the work of a heavy duty skill saw. I've been in construction since 1980, and have used most all light and heavy duty power tools. This Skill Saw ranks among the best I've used, in cordless saws. Just remember your blade choice is the most important factor in how effective this saw will perform. Please see my blade recommendation below. Others have commented on it's longevity with there batteries (1.5Ah & 2Ah batteries), regarding they drain fast. The smaller DeWalt batteries are going to drain faster. This skill saw is powerful, and puts a heavy load on the batteries. With this saw, you need the High Capacity 4Ah & 5Ah batteries (model 204 & 205). This saw will work with any and all of DeWalts 20V Max batteries, but the lower capacity batteries aren't recommended. I only use DeWalts 4.0Ah and 5.0Ah batteries, and with those, I can use this skill saw all day long, with 1 battery lasting most of the day, and usually all of the day. Features: -This skill saw has a blade break, which is a very nice feature in any skill saw. As soon as you release the trigger, the break engages, and stops the blade from spinning within seconds. -This skill saw also directs the cut material away from the user, and away from your line of sight. -This skill saw has the ability to cut from a directly perpendicular (90 degrees), and also can cut up to a 50 degree angle. -This is a nice light weight skill saw, and that greatly cuts the fatigue you would feel from using a traditional skill saw, all day long. -This skill saw allows for a direct line of sight to the blade and working surface. This is much like the design of a worm drive saw (a Roofers Saw), the design of most all other skill saws have the motor and the blade on opposite sides, so the skill saw operator would need to look over the top of the saw, to see his work surface. This is Not the case with this DeWalt Skill Saw! -The front and the main handle has a rubber over mold, and this gives the operator a great and comfortable grip on the skill saw. This makes it safer, and easier to control. Blade choice is important! -This skill saw uses a standard 5/8ths inch arbor, which gives the owner a wide selection of blade choices. There is a LOT of new blades out today that use think kerf cuts. This means the width of the cut is very thin, usually about 1/16th of an inch thick. Just know that these are basically cheap, and throw away blades. You also need to know, the thinner the tooth, the faster it will dull. -Please see Blade recommendation below- This blade here: Vermont American 6-1/2-Inch 40T Smooth Cut Carbide Teeth Circular Saw Blade, is one of the best blades you can buy for this saw. It's an extremely high quality blade, and the same blades that I use professionally, every day. It can be resharpened many times before needing replacement. It's very sharp, and uses very high quality carbide teeth. I Very Highly recommend this saw blade! To end, this DeWalt skill saw is a Professional Quality skill saw, and will last you for many many years. Everything about this skill saw is very high quality, and built very well. Very Highly Recommended!!! ... show more
Reviewed in the United States on December 25, 2014 by DB62

  • My opinion
Color: Yellow Size: 6-1/2 inches
Love it. Have a few Dewalt items. Used a friends saw & had to have one!! This was very affordable. The Price and size was perfect. This cuts 2x4 with ease. Easy & portable & cuts smoothly. The unit- as all of them pulls a lot of power so the battery does not have a long life-- FYI.. But long enough to do the project. Just keep another handy. Good product-- good price ... show more
Reviewed in the United States on January 26, 2026 by STEVE

  • Have no fear, great item here.
Color: Yellow Size: 6-1/2 inches
Used it today, worked great, plenty of power with my 20v 4ah battery.
Reviewed in the United States on May 14, 2026 by James P Wilson

  • not good for older people
Color: Yellow Size: 6-1/2 inches
good saw but trigger pull is to heave and the safety buttons are a pain
Reviewed in the United States on April 18, 2026 by walter harnly

  • “Powerful, Reliable Cordless Circular Saw”
Color: Yellow Size: 6-1/2 inches
The DEWALT 20V MAX Circular Saw delivers excellent cutting power for a cordless tool. It handles plywood, lumber, and general job site materials with ease, and the motor feels strong and consistent even under load. The cordless design is a huge advantage, giving plenty of mobility without sacrificing performance. It’s well-balanced in hand, and the grip feels secure, which helps with control during longer cuts. Adjustments for depth and bevel are quick and straightforward, and everything locks in firmly. Battery life is solid depending on the workload, and it integrates seamlessly with other DEWALT 20V tools. Overall, this is a dependable, high-performance saw that’s great for both DIY projects and professional use. ... show more
Reviewed in the United States on May 21, 2026 by Carlos Benavides

  • Awesome
Color: Yellow Size: 6-1/2 inches
Very powerful and well-designed battery-powered circular saw. First used to rebuild a large deck. Cuts 2" lumber with ease. Lighter, safer, and more convenient than my corded circular saw. I like having tools that use the 20V Max battery rather than each tool having a different style battery. DeWalt has replaced Ryobi as my new de facto standard for powerful one-form-factor battery tools. ... show more
Reviewed in the United States on May 12, 2026 by Secretcitynative

  • Good product, excellent!!
Color: Yellow Size: 6-1/2 inches
fast shipping, good value
Reviewed in the United States on June 9, 2026 by jon

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