RYOBI

RYOBI PCL445B Grinder

Grinder
Battery
4 pounds
18 volts

4.5/ 5 on Amazon257Amazon ratings400+bought last month4.1ProductDome score

Medium confidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology

Best forYou already own Ryobi 18 volt batteries and want a light cordless grinder for occasional use.

Cordless, light and fast enough for typical grinding tasks, this Ryobi tool suits an 18 volt battery-platform accessory role rather than heavy-duty standalone grinding.

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ProductDome scorecard

How it ranks among the 150 grinders we track

4.1/ 5ProductDome scoreMedium confidence

Owner satisfaction · 56% of scorecategory median 4.6★4.5

4.5★ across 257 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 256 ratings3.0

257 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score3.5

400+ bought on Amazon last month.

Data quality · 11% of score3.8

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 150 grinders we track - how the scorecard works · full grinders data report. Confidence: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

Running on an 18 volt battery, the RYOBI PCL445B grinder spins up to 9000 RPM and weighs about 4 pounds, light enough for one-handed use over a work session.

Cordless operation means no cord to manage on ladders or in tight spots, and the 4 pound weight keeps it maneuverable for extended use. Ryobi's PCL model numbering points to its 18 volt battery platform, though the listing does not confirm whether a battery or charger ships with it. Buyer demand looks healthy at 400 purchases in the past month.

18 volt battery powered
9000 RPM top speed
About 4 pounds
400 bought in the past month

Who it's for

Fits users already invested in Ryobi's 18 volt battery tools who want a light, cordless grinder for occasional cutting or grinding jobs. Less suited to continuous heavy grinding, where a corded tool holds power longer.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out

Cordless and light at about 4 pounds
Fast 9000 RPM motor speed
Strong recent demand

What to check first

Battery and charger inclusion not confirmed
No listed disc size

Performance notes

At 9000 RPM the motor spins fast enough for typical grinding and cutting discs, while the 4 pound body keeps fatigue down during handheld work. Runtime and disc size are not listed, so actual job capacity depends on the battery and accessory used.

Specifications

Brand	RYOBI
Model	PCL445B
Power Source	Battery
Item Weight	4 pounds
Voltage	18 volts
Speed	9000 rpm

How it compares

This product against the closest alternatives we track in grinders.

Product	Amazon rating	Ratings	ProductDome score
RYOBI PCL445B GrinderThis product	4.5 / 5	257	4.1 / 5
DEWALT DCG413B GrinderDeWalt	4.8 / 5	9,600	4.6 / 5
Milwaukee 2880-20 GrinderMILWAUKEE	4.8 / 5	2,400	4.5 / 5
AVID MW590 GrinderAVID	4.5 / 5	6,100	4.4 / 5
Makita 9557PBX1 GrinderMAKITA	4.8 / 5	3,960	4.4 / 5

Frequently asked

Questions about the RYOBI PCL445B

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

What voltage battery does the RYOBI PCL445B use?

It is listed as 18 volts, matching Ryobi's battery tool platform.

How fast does the PCL445B spin?

Up to 9000 RPM according to the listing.