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Internet #308056101

Model #R8654B

Store SKU #1004038260

Store SO SKU #1003965298

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

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  • OCTANE Brushless Motor Technology provide Best-in-Class Power
  • Includes: Blade, Blade Wrench, Dust Chute and Vacuum Attachment
  • Free Parts and Service for Life with Registration
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Product Overview

RIDGID introduces the 18V OCTANE Brushless Cordless 7-1/4 in. Circular Saw (Tool-Only). The OCTANE Brushless 18V 7-1/4 In. Circular Saw features a high performance brushless motor and advanced electronics that provide best-in-class power and intelligence. While providing increased performance with all RIDGID 18V batteries, OCTANE tools provide maximum performance in high demand applications when paired with OCTANE batteries (batteries not included). Paired with an OCTANE battery (batteries not included), this tool gives 30% more power. With registration, this tool is backed by the Industry's Only Lifetime Service Agreement: FREE Parts. FREE Service. For LIFE. The OCTANE Brushless 7-1/4 in. Circular Saw includes a 7-1/4 in. blade, blade wrench, vacuum attachment, dust chute, rafter hook and operator's manual. Battery and charger sold separately.
  • Industry leading 2-11/16 in. depth of cut
  • RIDGID OCTANE Brushless 18V 7-1/4 in. Circular Saw delivers 30% more power than the previous brushless unit (R8653B) when paired with an OCTANE Battery
  • The dust chute and included vacuum adapter cuts back on jobsite clean up
  • With the integrated accessory rail, users can attach the included rafter hook for additional storage options
  • LED light engages with trigger for a more direct and clearer line of sight
  • Offers up to 56 degree beveling cuts for added versatility
  • 100% Compatible: Works with all RIDGID 18V Batteries and Chargers
  • Lifetime Service Agreement with registration within 90 days of purchase
  • Includes: (1) R8654B OCTANE Brushless Circular Saw, (1) 7-1/4 in. blade, (1) blade wrench, (1) vacuum attachment, (1) dust chute, (1) rafter hook 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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NameONE+ 18V Cordless 6-1/2 in. Circular Saw (Tool Only)18V OCTANE Brushless Cordless 7-1/4 in. Circular Saw (Tool Only)ONE+ HP 18V Brushless Cordless Compact 6-1/2 in. Circular Saw (Tool Only)18V SubCompact Brushless Cordless 6 1/2 in. Circular Saw (Tool Only)
Save $50.00 (34%)
Power Tool FeaturesDepth Adjustment,Keyed Blade ChangeKeyed Blade ChangeCompact,Cushioned Grip,Depth Adjustment,Electric Brake,Heavy Duty,Keyed Blade Change,LED Light,Lockout Power Switch,Spindle Lock,Two Hand GripsDepth Adjustment,LED Light,Variable Speed
Voltage (volts)181818 V18 V
Blade Diameter (in.)6-1/2 in7-1/4 in6-1/2 in6-1/2 in
Blade LocationLeftRightLeftLeft
Motor TypeBrushedBrushlessBrushlessBrushless
Included AccessoriesAllen Key/Wrench,Blade(s)Allen Key/Wrench,Blade(s)Allen Key/Wrench,Blade(s)Blade(s)
Saw Drive TypeSidewinderSidewinderSidewinderSidewinder
View ProductView ProductView ProductView Product



Maximum Cut Depth @ 90 Deg.1.8125 inProduct Depth (in.)15.32 in
Product Height (in.)9.14 inProduct Width (in.)8.98 in


Battery Amp HoursNo BatteryBattery Power TypeLithium Ion
Battery Size18-voltBattery/ChargerTool Only
Battery/ChargerTool OnlyBevel Capacity56
Blade Diameter (in.)7-1/4 inBlade LocationRight
Charger IncludedCharger Not IncludedColor FamilyOrange
ConditionNewConstruction MaterialAcrylonitrile Butadiene Styrene (ABS)
Cordless Tool TypeCircular SawCordless/CordedCordless
IncludedBlade(s)Included AccessoriesAllen Key/Wrench,Blade(s)
Maximum Cut Depth @ 45 Deg.2.6875 inMaximum Speed (rpm)5600
Motor TypeBrushlessNumber of Total Batteries Included0
Power Tool FeaturesKeyed Blade ChangeProduct Weight (lb.)8.6 lb
Returnable90-DaySaw Drive TypeSidewinder
Tools Product TypePower ToolVoltage (volts)18

Warranty / Certifications

Manufacturer WarrantyLifetime Service Agreement with registration within 90 days of purchase

Questions & Answers

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Customer Reviews

  • 4.4
    out of 766 reviews
  • 75%recommend this product
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Showing 1-10 of 766 reviews
Ridgid 7 1/4 " 18 Volt Circular Saw
Only used 2 days so far, but compared to another brand, it cuts just as fast. The cutting guide for the blade lines up with the actual cut. With 4 amp hr battery it lasted about 3.5 hours cutting green oak while building a cabin. Put another battery in cut the rest of the 6 hour day.
  • Verified Purchase
  • Recommended
As rugged as a corded saw
I finally got the saw to go with my drill, impact gun, work light
    • Recommended
    The worst
    I LOVE Rigid products, pretty much every tool I own is Rigid, so it is with great disappointment I write this review. This circular saw is crap. I have yet to get it to cut through something without it stopping, usually only 2-4" into a project. Even if I remove the blade, restart it and place it into the line I've already managed to cut it will jam if not at the same spot but maybe a half inch further in. Ihave literally only managed to get it to finish a complete pass, after many stops and starts, once. ONCE! I've tried holding it at different angles, pushing at different speed/pressure, and now on three different board thicknesses and still the same problem. This thing is garbage, especially for the price. I will now try to sell it so I can aquire a completely new saw. I'm attaching a pic my most recent attempt at cutting a 2x10 board that I tried cutting this morning, but was forced to move to my miter saw which was super fun.
      10 found this review helpful
      Stops mid cut
      This saw sporadically stops mid cut. Very annoying and near impossible to cut anything with it.
        11 found this review helpful
        Its a little on the heavy side but dose not...
        Its a little on the heavy side but dose not lack for power it has a brite light and easy to read measurements. If you dont have a octane battery go get one its a must for this tool...
        • Verified Purchase
        6 found this review helpful
        My New Go To
        I have always used my battery operated systems is a backup or a small job tool and relied heavily on my corded systems. this saw what it's 18 volt system large amp hour batteries and octane configuration is a game-changer for me. I was able to complete a 10 x 20 porch without ever unloading my corded circular saw. the promo deal on the octane products where you buy the fast charger the two batteries and receive a tool is not only fair priced but a great deal. the only issue that I have had with this saw is the egress of sawdust. and this is not really even an issue after quite a few cuts due to it not clearing itself of sawdust it needs to be cleaned either with a few blows of pressurized air orabrush. the saw does come with an attachment for a Shop-Vac that you can use I have used both and found that neither mitigates this issue. all that being said I feel it is a small price to pay for the power and longevity the runtime that this provides. the material used in its manufacturing seems to me to be prograde it does not bend or twist when in use. in summary I am very pleased with this product.
          • Recommended
          8 found this review helpful
          I picked this up as my FREE tool when purchasing the Octane 6Ah and the 3Ah combo. I had to build...
          I picked this up as my FREE tool when purchasing the Octane 6Ah and the 3Ah combo. I had to build an new pair of steps and some lattice frames for my front porch. This was pressure treated wood that was still very wet from the store. I was pleased with the battery life of the 6Ah and the power of the saw. I only used half of the battery for this project, including a few extra cuts to to my error.
            • Recommended
            10 found this review helpful
            absolutely recommend
            This is a great cordless saw. Extremely powerful. Feels solid in your hands and cuts a very clean cut. I have used this for various jobs around the house, garage, and lawn. It has been durable and puts my dads craftsman and ryobi to shame and conpets with my brothers Makita and friends Milwaukee. And priced more offordable too. With either the octane battery (if you can still find them, they are amazing but sadely discontinued) or the max output you will never feel like you need a cord for more power. The dust collection works with a solid dust extractor but you’ll still get some dust being a circular saw. After three years of use this thing still feels and acts brand new. Take care of this because it is a well built little machine. Only complaint is Ridgid isnt marketing and producing the Octane line. It is great and i highly recommend it.
              • Recommended
              • Verified Purchase
              Might need more muscle for bigger jobs
              The Ridgid 18v Octane is fine for small jobs, but if you want to cut thick lumber and cut a lot of it, it would be better to get a 36v circular saw/
              • Verified Purchase
              Showing 1-10 of 766 reviews