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Internet #315979537

Model #R8657B

Store SKU #1006208468

18V Brushless Cordless 7-1/4 in. Circular Saw (Tool Only)

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  • 15 Amp Corded Cutting Performance
  • 2-9/16 in. Cut Capacity and 56° Bevel Capacity
  • Free Parts and Service for Life with Registration
  • View More Details
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Product Overview

RIDGID introduces the R8657 18V 7-1/4 in. Circular Saw. RIDGID's brushless motor technology delivers maximum performance and longer runtime. This powerful brushless Circular Saw delivers 15A corded like cutting speeds at 35% faster than the previous generation, with up to 5,400 RPMs. It features a 2-9/16 in. Depth of Cut and a 56° bevel capacity for the most common cuts. This cordless saw features an electronic blade brake to minimize downtime, stopping the blade in seconds. This Brushless 7-1/4 in. Circular Saw is vacuum attachment compatible and accepts 1-1/4 in. and 1-7/8 in. hose sizes. As always, this RIDGID Brushless 18V 7-1/4 in. Circular Saw is 100% compatible with all RIDGID 18V batteries. Best of all, this tool is backed by the Industry's Best Lifetime Service Agreement, simply register within 90 days of purchase for FREE Parts, FREE Service, FOR LIFE. The RIDGID 7-1/4 in. Circular Saw includes the R8657 18V Brushless 7-1/4 in. Circular Saw, 7-1/4 in. Circular Saw Blade, hex key, vacuum attachment with screw, and Operator's Manual. Battery and charger sold separately.
  • 35% Faster Cutting when compared to the R8652B
  • 5,400 RPM
  • 2-9/16 in. Depth of Cut
  • Electronic Blade Brake stops the blade in seconds
  • 56° Bevel Capacity cuts the most common angles
  • Heavy duty aluminum base provides jobsite durability
  • LED Light for improved visibility in low-light situations
  • Accepts 1-1/4 in. and 1-7/8 in. vacuum hose attachments
  • 100% Compatible: Works with all RIDGID 18V Batteries
  • Lifetime Service Agreement with registration within 90 days of purchase
  • Includes: R8657 18V Brushless Cordless 7-1/4 in. Circular Saw, 7-1/4 in. Circular Saw blade, hex key, vacuum attachment with screw and Operator's Manual
  • Battery and charger sold separately
  • RIDGID: Build for a Lifetime

  • Click here for more information on Electronic Recycling Programs
  • California residents

Additional Resources

From the Manufacturer

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Power Tool FeaturesDust Collection,Variable SpeedDepth Adjustment,LED Light,Variable SpeedDepth Adjustment,Electric Brake,Keyed Blade Change,Lock On Switch,Spindle LockKeyed Blade Change
Voltage (volts)18 V18 18
Batteries IncludedNoNo Yes
Blade Diameter (in.)6-1/2 in7-1/4 in7-1/4 in7-1/4 in
Blade LocationLeftRightLeftRight
Motor TypeBrushedBrushless Brushless
Battery Amp HoursNo BatteryNo Battery 4 Ah
Saw Drive TypeSidewinderSidewinderWorm DriveSidewinder
View ProductView ProductView ProductView Product



Maximum Cut Depth @ 90 Deg.
2-9/16 in
Product Depth (in.)
15.32 in
Product Height (in.)
9.13 in
Product Width (in.)
8.98 in


Batteries Included
Battery Amp Hours
No Battery
Battery Power Type
Lithium Ion
Battery Size
Tool Only
Tool Only
Bevel Capacity
56 °
Blade Diameter (in.)
7-1/4 in
Blade Location
Charger Included
Charger Not Included
Color Family
Construction Material
Acrylonitrile Butadiene Styrene (ABS)
Cordless Tool Type
Circular Saw
Included Accessories
Maximum Cut Depth @ 45 Deg.
2.6875 in
Maximum Speed (rpm)
Motor Type
Number of Total Batteries Included
Power Tool Features
Depth Adjustment,LED Light,Variable Speed
Product Weight (lb.)
8.3 lb
Saw Drive Type
Tools Product Type
Power Tool
Voltage (volts)

Warranty / Certifications

Certifications and Listings
UL Listed
Manufacturer Warranty
Lifetime Service Agreement

Questions & Answers

Typical questions asked about products:

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Customer Reviews

  • 4.9
    out of 20 reviews
  • 100%recommend this product
Filter by:
Showing 1-10 of 20 reviews
No more catching an extension cord and twisting a cut
I wanted cordless so I could eliminate worrying about a cord catching on something and twisting the saw and trashing the cut. The arrival of brushless technology brought enough power that I finally decided to try changing. I'm glad I did. This RIDGID 7 1/4 inch Circular Saw has more capability than I think I need, at least until the next project (funny how that works). A 56 degree bevel with 0 stop that can be calibrated. Blade alignment notches on the base to calibrate a square blade. A strong work light right above the cut. Depth adjustment, spindle lock button, included allen key for blade change, and a shop vac adapter (T-20) screw. I admit the shop vac adapter is a nice-to-have sometimes, but using it puts me back to worrying about the vac hose catching on something and twisting the saw and trashing the cut. There is a built in rafter hook that might come in really handy when I get around to putting some access walkways in the trusswork. The saw uses the standard RIDGID 18V batteries so I can share batteries among all my RIDGID tools. RIDGID also lets you register the tool for Lifetime Service Agreement that includes free batteries but that requires a Home Depot receipt and if someone gave you the tool it could be a bit awkward. I can also fit this to a sled and edge guide to turn it into a track saw.
  • Recommended
Powerful portable cordless circular saw
I have been using circular saws for all manner of projects around the house and in the shop for as long as I can remember, but their major drawback is the need for a nearby power supply or long enough extension cords. This drill set me free from this need. The tool itself has plenty of power and quickly cuts through plywood and dimensional lumber. It handles well, though with the battery installed it is relatively heavy. This is going to be my go-to saw for the majority of wok outside the shop.
Superior sidewinder motor cordless saw with awesome 5,400 rpm
Superior cordless saw that uses a full 7-1/4" blade, and has a super 5,400 RPM for better cutting power. This model has a sidewinder motor, which is lighter and has a higher blade speed than a worm drive saw. This brushless motor creates less heat which could damage the motor, and less friction, so it is more efficient. There is also an LED light to allow you to see the cut line when ambient lighting is low. Also, there is a port for a vacuum hose attachment.
  • Recommended
Ridgid 18 Volt 7-1/4"Circular Saw
Ridgid 7-1/4" saw is great very easy to use and to change blades. Hex key for blade mounts on top of the saw, very handy. This saw is good for framing buildings and many other carpentry jobs. It angel cuts and hooks to a vacumue cleaner, this works great to help control dust. I use a 4.0 battery with it and it lasts a long time for me. I have several Ridgid tools now and I love them all.
  • Recommended
Gets the job done fast!
The RIDGID 18V Brushless Cordless 7-1/4 in. Circular Saw is impressive. This is the first Cordless model I've owned. This saw is very well-balanced, comfortable, appealing, and works all day. It doesn't drain batteries as much I'd been thought. In fact, it's very efficient. It doesn't overheat when cutting thicker wood. I love the convenience and freedom of cordless and eliminating the power cord. Paired with an OCTANE battery (batteries not included), this tool gives 35% more power. Offers up to 56 degree beveling cuts for added versatility. 100% Compatible with all RIDGID 18V Batteries and Chargers which eliminates the need for difference types of chargers. Inserting and removing battery couldn't be easier. Speeds at 35% faster than the previous generation, with up to 5,400 RPMs when needed. It features a 2-9/16 in. depth of cut and a 56° bevel capacity for the most common cuts. This saw glides through cuts without losing too much speed. The Heavy-duty aluminum base makes the difference. This cordless saw features an electronic blade brake to minimize downtime, stopping the blade in seconds. I feel good about Ridgid quality, and the Best Lifetime Service Agreement.
  • Recommended
Go to circular saw
Ridgid Brushless 18 volt 7-1/4 inch Circular Saw Model R8657B tool only. This circular saw delivers the power of a standard 15 amp corded electric circular saw. This circular saw comes complete with a 24 Carbide teeth blade. This circular saw comes with the standard 5/8 inch arbor. This circular saw is designed to cut 35 percent faster than traditional circular saws and produces a blazing no load 5,400 RPM. This circular saw comes complete with an electronic blade brake. This circular saw is designed with a convenient vacuum attachment for clean and dust free cutting. The cutting capacity of this circular saw is 2-9/16 inches for 90 degree cuts and 1-3/4 inches for 45 degree cuts. In addition, this circular saw has a maximum bevel capacity of 56 degrees making this circular saw perfect for any job. I have had my Ridgid Brushless 18 volt circular saw Model R8657B for about a week now and love it. No more extension cords for my cutting projects. As with all Rigid tools this circular saw comes with a lifetime service agreement when registered at register.rigidpower.com. I highly recommend this circular saw for the construction professional or homeowner who wants a hardworking, reliable, built tough saw for your tool arsenal.
  • Recommended
Very rugged, well made!!
My husband loves all the precise measurement markings on this saw, and this will be very helpful when he is cutting. Since this tool-only saw does not come with batteries, I bought the Ridgid 4ah 2-pack of batteries with a charger and carrying bag from Home Depot during their sale for $99.00. When used with our new 4ah batteries, this saw is very powerful, and it has an onboard light that turns on for better visibility when cutting. Made in China. My husband is very happy that he no longer needs to drag around a power cord when using his circular saw!
  • Recommended
Brushless, Faster, Affordable
They've stepped up the speed on this one. I was surprised at the speed and cost of this one. It's a great looking saw first of all. It has an LED that makes seeing what you're doing easier. It is a brushless motor. Less maintenance, more power/speed. It has an Electronic Blade Break that stops the blade really quickly when you release the trigger. This saw uses the popular 7-1/4" blades with the 5/8" arbor, than can be found anywhere. Cutting depth at 90° is 2-9/16, 1-3/4 at 45° and the bevel capacity is 56°. The speed of the saw is up to 5400rpm. You can attach an optional edge guide if you desire. A well-made rafter hook is already installed and ready to use. They stepped it up on this one, yet kept it affordable. This a great saw, well-made and will last me for many years.
  • Recommended
Compact portable cutting power
RIDGID 18V Brushless Cordless 7-1/4 in. Circular Saw (Tool Only). This is a compact saw with a 7-1/4” bite. There are many features that make the saw handy. The depth gage makes it easy to set the blade depth in ¼” increments up to 2-1/2” deep. The angle setting has every possible point for most common angles that are easy to set with the angle gage. The saw does not come with a charger and battery but does include a 7-1/4” 24 tooth carbide tipped blade. The blade is changed with an Allen wrench included on the side of the saw handle for easy storage. There is also an arbor locking button to make blade changing easy and secure. There is a provision for a slide for horizontal cut settings, but the slide is an option and not included in this offering. There is an electronic blade brake to stop the spinning blade after relies of the trigger. A suction vacuum hose attachment is included to help eliminate saw dust during cutting. The limited 3-year warranty can be extended by registering the product for a lifetime service agreement. The 18-volt motor delivers 5400 RPM of power for fast cutting. The saw is right hand specific but could be operated with the left hand. The trigger requires that the safety thumb switch be pressed to allow the trigger to engage. The thumb trigger can be selected from either side of the handle.
  • Recommended
Pro Level
Definitely, a Pro Level tool! Out of the box, and there’s nothing necessary but to install the standard 7 ¼” general framing grade 24-tooth blade with the hex key, not only included, but has it’s own ‘storage spot’ on the saw! Always available, never lost. And if you’re already a Ridgid user like I am, just grab a spare battery and off to your next job. The push button blade lock holds securely when tightening or loosening the blade on the tool, and the hex wrench is right there! For freedom of movement, it even includes a belt clip, that folds safely out of the way, when not in use. The miter gauge is extremely well marked, for precise setting, as is setting the blade depth. Very well marked! And both have an easily accessible lock to ensure your saw adjustments stay where you put them. And with the exhaust chute, feel free to hook up your shop vac or dust collection system, no sweat. This saw has it all!
  • Recommended
Showing 1-10 of 20 reviews