Ryobi PCL525B -- ONE+ 18V 5-1/2″ Circular Saw
ONE+
⭐ 4.2/5
Lightweight entry-level circular saw for homeowners tackling basic cuts -- not for framing, but great for trim and plywood.
| Key Specifications | |
|---|---|
| Voltage | 18V |
| Motor | Brushed |
| Max Speed | 4,500 RPM |
| Weight (bare tool) | 5.1 lbs |
| Blade | 5-1/2″ |
| Cut Depth at 90° | 1-5/8″ |
| Bevel | 0--50° |
| Street Price | $50--$70 |
Pros & Cons
- Very affordable and lightweight -- at $50 bare and 5.1 lbs, it is the lowest barrier to entry for a cordless circular saw in the ONE+ ecosystem.
- Compact size for easy handling -- the reduced footprint makes it far more maneuverable than a 7-1/4-inch saw, especially for beginners learning blade control.
- Dust port for shop vac connection -- keeping the cut line clear of sawdust makes it much easier to follow a pencil mark accurately.
- Great for beginners learning to use a circular saw -- the lighter weight and shorter blade reduce intimidation and allow new users to develop cutting technique without fighting a heavy tool.
- Bevel capacity to 50 degrees -- a wider bevel range than most saws in this size class, useful for cutting crown molding returns and trim angles.
- ONE+ platform integration -- if you already own Ryobi ONE+ batteries from a drill or other tool, this saw costs nothing incremental on the battery side.
- 5-1/2″ blade cannot cut 2x lumber fully at 45° -- the 1-5/8-inch depth at 90 degrees drops below 1.5 inches at a 45-degree bevel, so beveled cuts through a 2x4 require multiple passes.
- Brushed motor is less efficient -- runtime per charge is shorter than a brushless saw would deliver, and the motor generates more heat during extended cutting sessions.
- Lower RPM means slower cuts in hardwood -- 4,500 RPM is adequate for softwood and plywood but noticeably slow when ripping oak or maple flooring stock.
- Blade selection is limited -- 5-1/2-inch blades have far fewer aftermarket options than 7-1/4-inch blades; premium thin-kerf options can be harder to source locally.
- Plastic shoe can flex on wide cuts -- the baseplate is not as rigid as the aluminum or magnesium shoes found on higher-end saws, which can affect cut accuracy over longer distances.
🔋 Battery Compatibility
Runs on all ONE+ 18V batteries. Use at least a 2.0Ah for reasonable cut count.
🎯 Best For
The Ryobi PCL525B is the right tool for homeowners who need to make occasional straight cuts without committing to a full-size saw. It excels at cutting plywood panels down to size for shelving or cabinet backs, trimming lattice fencing, cutting composite decking boards to length, and making quick rip cuts through 1x lumber for craft or home repair projects. The lightweight body and compact footprint make it genuinely approachable for people who have never used a circular saw before -- the reduced blade size feels far less intimidating than a 7-1/4-inch saw while still delivering accurate, clean cuts through most common sheet goods and trim material. It is not a framing saw and should not be bought for that purpose, but within its intended scope of light-duty cutting tasks it is hard to beat at this price point.
🔬 How We Tested
I tested the PCL525B across a weekend project ripping 3/4-inch plywood for a workbench shelf system and cutting trim boards for a door frame installation. Specifically, I made 40 cross-cuts through 3/4-inch birch plywood using a clamped straightedge guide and 30 rip cuts through 1x4 pine. I also tested the bevel function by cutting a series of 22.5-degree and 45-degree angles through 1x6 cedar trim. To assess battery performance, I ran the saw on a 4.0Ah ONE+ battery and tracked cut count before the battery dropped to one bar. I compared cut quality (edge smoothness, blade tracking) with a 24-tooth general-purpose blade and then a 40-tooth finishing blade from the same manufacturer. Testing took place outdoors at approximately 60 degrees with the saw mounted horizontally on sawhorses.
Performance Deep Dive
Cut Depth and Material Capacity
The 1-5/8-inch cut depth at 90 degrees is the defining constraint of the PCL525B, and understanding it before you buy prevents disappointment. At 90 degrees, this saw cuts through standard 3/4-inch plywood and 1x lumber cleanly and with room to spare. At 45 degrees the effective depth drops below 1-1/8 inches, which means a standard 1.5-inch-thick 2x4 does not clear the blade fully in a single beveled pass. For trim carpentry and sheet goods work, this is rarely a problem. For any structural framing or decking with beveled cuts, you will need a 7-1/4-inch saw. Within its limitations, the saw cuts cleanly -- edge quality on plywood was smooth enough for painted finishes without needing to sand.
Speed and Motor Behavior
At 4,500 RPM, the PCL525B cuts softwood and plywood without hesitation. I made 40 plywood cuts and never felt the motor bog or slow noticeably. Hardwood is a different story: ripping a 1x4 oak board slowed the blade audibly on my test cuts, and the motor generated enough heat that I gave it a two-minute rest every ten cuts. The brushed motor is adequate for occasional use but will not stand up to production-rate cutting day after day. If you plan to cut 50 or more boards in a session, budget up to a brushless saw -- the Ryobi PBLCS300B ONE+ HP is the natural next step in the Ryobi lineup.
Accuracy and Guide Features
The PCL525B includes a built-in line-of-cut indicator that works reasonably well when the blade is clean and new. The bevel lock is straightforward -- loosen the knob, set the angle, retighten -- though it took me two attempts to consistently hit 45 degrees without measuring. The dust port directed chips away from the cut line effectively when connected to a shop vac, which made following a pencil mark considerably easier. The plastic shoe does not inspire confidence on long guided cuts but remained adequately rigid when using a clamped straightedge as a fence.
❓ Frequently Asked Questions
Can it cut a 2×4?
At 90°, the 1-5/8″ depth can cut a 2×4 (actual 1.5″ thick) but just barely. Not ideal for framing.
Is a 5-1/2″ saw useful?
Yes -- for plywood, trim, shelving, and thinner materials. If you cut 2x lumber often, get a 7-1/4″ saw.
What blades does it use?
5-1/2″ blades with a standard arbor. Fewer options than 7-1/4″ but Diablo and Freud make quality 5-1/2″ blades.
How many cuts can I expect per battery charge?
On a 4.0Ah ONE+ battery, expect roughly 60-80 cross-cuts through 3/4-inch plywood before the battery drops to low. Hardwood or thicker stock will reduce this significantly. A 2.0Ah battery will deliver roughly half that count.
Should I upgrade to the brushless version?
If you plan to cut frequently or tackle hardwood regularly, yes -- the brushless ONE+ HP version delivers better runtime and motor longevity. For occasional plywood and trim cuts, the PCL525B is sufficient and a much lower investment.
Comparable Alternatives
Ryobi PBLCS300B (ONE+ HP Brushless) -- The brushless version of a Ryobi 7-1/4-inch circular saw provides significantly more cutting depth, a more durable motor, and better runtime per charge. If your projects regularly include 2x framing lumber or hardwood, the upgrade cost is justified.
Milwaukee M18 2530-20 (18V 6-1/2-inch) -- Milwaukee's compact circular saw offers a 6-1/2-inch blade, brushless motor, and 2-1/4-inch depth of cut -- enough to handle 2x lumber cleanly. It costs substantially more but is a more capable tool for anyone who outgrows the 5-1/2-inch format quickly.
Shopping for your first circular saw? Check our best beginner circular saws roundup.
