Model # CSB124

Internet #100634339

Store SKU #720623

Ryobi 12-Amp 7-1/4 in. Circular Saw


12-Amp 7-1/4 in. Circular Saw

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Product Overview

The Ryobi 7-1/4 in. Circular Saw features a 12-Amp motor that delivers up to 5000 RPM to help you cut through tough materials. It has a durable 7-1/4 in. 20-tooth blade. The blade is equipped with a spindle blade lock for easy, keyless blade changes.

California residents: see   Proposition 65 information

Info & Guides

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Name 13-Amp 7-1/4 in. Circular Saw 13 Amp 7-1/4 in. Circular Saw with Laser 14-Amp 7-1/4 in. Circular Saw with Laser 12-Amp 7-1/4 in. Circular Saw
Brand Ryobi BLACK+DECKER Ryobi Ryobi
Ratings (174) (1) (141) (143)
Blade Diameter 7.25 7.25 7.25 7.25 in
Reconditioned No No No No
Power Tool Features Depth Adjustment,Spindle Lock Depth Adjustment,Spindle Lock Depth Adjustment,Laser Guide,Spindle Lock Spindle Lock
Cordless/ Corded Corded Corded Corded Corded
View Product View Product View Product View Product



Blade Diameter
7.25 in
Maximum Cut Depth @ 90 Deg.
2.438 in
Product Depth (in.)
9.5 in
Product Height (in.)
9.5 in
Product Width (in.)
12 in


Amperage (amps)
Bevel Capacity
Blade Location
Color Family
Cord Length (ft.)
Corded Tool Type
Circular Saw
Cordless/ Corded
Depth Adjustment
Electrical brake
Keyless/keyed blade change
Maximum Cut Depth @ 45 Deg.
1.875 in
Maximum Speed (rpm)
Power Tool Features
Spindle Lock
Product Weight (lb.)
7 lb
Spindle Lock
Tools Product Type
Power Tool

Warranty / Certifications

Certifications and Listings
1-UL Listed
Manufacturer Warranty
3 Year Warranty.

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Customer Questions & Answers

my fairly new ryobi circular saw just quit on me yesterday when I was sawing through a thin piece of shelving. Is there a reset button?

Asked by: Commander
likely defective assuming you are talking about laminated particleboard you did not hit a nail if your within the return policy period return it or exchange if not you might be able to exchange it for an another identical unit or for store credit or you could make use of the warranty
Answered by: electronicsgeek
Date published: 2017-03-27

Use converter

Drawing 1440 watts, will this saw work well using a converter attached to the truck battery for a power source? JT
Asked by: JT
you need a surge current capacity equal to at least double the motor running current sometimes triple then your battery and cables on the low voltage side must be able to supply that current witch is gonna be a lower efficiency so my advice if you have a problem even if you got the start up current on your invertor would be to add a capacitor in parallel with the invertor say something to the tune of 5 farads to give you the starting current you could likely do with less but more is better in this case other wise it causes more ware on your electrical system and do not forget to leave the truck running or you will kill the battery less the 10 minutes invetor stops and then the truck wont start done you might want to think about an alternator upgrade anything less then 200 amps is just risky really 300 amps would not be over kill
Answered by: electronicsgeek
Date published: 2017-03-27

How many watts does this saw draw?

I will be using a generator to power this saw and I need to know how many watts that it draws. Thanks.
Asked by: Bud
i would figure 1440 based on it being 12 amp multiplied 120 if the voltage dropped to 110 it would be 1320 I would figure it for 1500 for the ease of the math and a small safety margin always best to over estimate your draw a bit on this type of thing
Answered by: electronicsgeek
Date published: 2017-03-27

saw starts as soon as i plug it inwithout using start trigger.

I don't have the manual.
Asked by: Rosie
the triger switch is likely shorted could also be the wires that attach to the trigger but 99.99 percent its the trigger switch its a mechanical issue most likely not an electrical one but rather its the actual switch or the plastic trigger that pushes on the switch its an easy fix if you have the skill to take it apart and put it back together I would advise against using it in the current condition as its a bit unsafe but unlikely to to over heat and or catch fire or shock you if used for short cuts using the plug as a power switch in a pinch on a job site you could still use it if you really had to but get it repaired or use another saw is the best option this might the part and DO NOT test until completely reassembled and make sure its unplugged before you attempt any service or make sure the battery is removed
Answered by: electronicsgeek
Date published: 2017-03-27
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Customer Reviews

12-Amp 7-1/4 in. Circular Saw is rated 3.9 out of 5 by 143.
Rated 4 out of 5 by from Excellent DIY Saw I bought this saw to help me reconfigure and refinish my deck and for different odds and ends projects around the house. For my purpose, it does the job very well. Since I don't need to use the saw very often, I wanted to buy the lowest priced dependable saw. I believe this is it. I didn't bother w/ the blade that came with it and bought a diablo 24 tooth instead at the recommendation of others here. The only slight downside is that the saw is heavy (for me) and it does show it's lack of power during some harder cuts. (But you do get what you pay for.) All in all, excellent buy for those not looking to spend a lot of money.
Date published: 2012-10-16
Rated 1 out of 5 by from Initially purchased to use in workshop. Refused to start right out of the box. Called Home Depo... Initially purchased to use in workshop. Refused to start right out of the box. Called Home Depot and tool dept. had no idea why. After reading the entire manual twice, I found the tiny box with the note about safety switch to prevent accidental starts while traveling. Why this is needed to prevent starting the saw while it's in a bag or box unplugged is beyond reason or logic. After incremental movement of the blade to line up some magical position related to the switch, it started. Called Home Depot to share the news they could pass on to staff and future customers, I went to work in the shop. Was actually cut easily and accurately. The next time I attempted use, same problem. Dropped it on the work bench and picked up a meter. Started checking and every thing looked good. plugged it in and it ran. ??? Put the saw away for the winter in the storage bag. Same problem and too late to return. Looks like a good boat anchor or paper weight. I'm done with Ryobi power tools.
Date published: 2017-07-11
Rated 4 out of 5 by from A pleasant surprise My first time using the product was truly a surprise.I have been doing various forms of building all of my adult life,and I swore by some of the so called "better brands". As it turns out,those "better brands" are merely a reputation due to the length of time that they have been doing business. I am not going to sit here and tell you that this fifty dollar saw will stand up to the rigors that a two hundred dollar saw will,but for the price you won't be disappointed. I do this type of work for a living and it does everything I ask of it.If you're a do-it yourselfer ,you've found perfection without breaking your bank account.
Date published: 2010-12-21
Rated 4 out of 5 by from If you don't buy oversized, you can afford more. I know that this is not a forum for wood-bound philosophy., but hear me out. After years of buying Godzilla-level tools for an imaginary future need, I realize that the best tool is one that fits the needs you have. I'm a DIY guy. This really strong little circular saw is lightweight, compact, and right sized for the needs of a homeowner. I'm not needing this to frame out a few houses; I need to cut lumber for outdoor household projects every summer. Put a thin kerf carbide blade on this, as I have, and it'll pretty much do anything you ask of it. Be realistic...don't ask it to plunge cut 5/4 seasoned oak floors quickly. (and NO, I didn't :)
Date published: 2014-08-08
Rated 4 out of 5 by from Good general purpose saw First and foremost don't use the blade in the box. It is beyond terrible and you'll think your saw is weak/defective/broken if you do. I tried to use it to cut some 2x4s and the saw was struggling. I put on a cheapie 24-tooth blade that I bought just in case and it was night and day difference! The first task with this saw was to remove the old rotted deck that the previous owner installed at my house. This saw had no problems (with the non-stock blade) cutting 2x4s and 2x6s for extended periods. Cuts were nice and clean even with a 24 tooth blade. Second I switched to an abrasive blade to cut some small pieces of tile for a back splash in my kitchen. The saw worked perfectly for this process and I was able to quickly make my tile cuts. The saw actually tilts if you need that functionality. I don't and found it slightly problematic because the screw came loose on the front and I had to find a way to rig it so that it wouldn't tilt. There is a lock button you can told down to keep the blade from moving along with a tool to unscrew the blade that makes changing blades very easy which I do like. As my summary says this is a good general purpose saw. I wouldn't recommend it for anyone who is doing saw intensive tasks all day as it does get a little hot during extended use.
Date published: 2012-04-30
Rated 4 out of 5 by from Great product for the money I volunteered to make a cub-o-matic for our cub-scout pack. For my idea I needed a to cut some plywood. For the small project I didn't want to spend a lot of money so, I bought this Ryobi. It was dependable and worked great. On to the next project!
Date published: 2012-05-15
Rated 4 out of 5 by from A cheap saw that held up to abuse! I was a bricklayer for 20 years and I also built some homes, so I am use to professional equipment and tools. I sold everything when I changed professions, so when I had to knock out a wall at home due to ants I bought cheap just to get the job done. It worked great for the home repair and I have since used it to cut out and replace all the windows in the home. In addition, I did a blue stone patio at home and for a friend (total of about 900 sqft) using this saw to cut the stone w/a diamond blade. I also did a full fireplace block rough in and put fake stone on the outside w/real stone on the inside, mica slate hearth, block foundation for a mobile home, and a wheel chair ramp. I think it needs new brushes as it hardly runs, but for the price I am on my way to get a new one for another project.
Date published: 2013-01-18
Rated 4 out of 5 by from Great product for the money. Very economical. I bought this circular saw to cut pavers for a patio that I was building with 1 3/4 inch thick pavers. The saw worked great to cut the 1/2" to 3" pieces that I needed. I did, however, buy a special blade for cutting brick before I started. Fairly easy to use but a little heavy.
Date published: 2012-11-20
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