Cordless

Cordless DE-AG-01 Grinder

Grinder
Battery
20 volts
11000 rpm

4.1/ 5 on Amazon64Amazon ratings100+bought last month3.7ProductDome score

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

Best forYou want a cordless grinder for occasional cutting, grinding or rust removal

A cordless grinder for portable, occasional use, with a top speed that leans toward control rather than maximum stock removal.

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ProductDome scorecard

How it ranks among the 150 grinders we track

3.7/ 5ProductDome scoreMedium confidence

Owner satisfaction · 56% of scorecategory median 4.6★4.2

4.1★ across 64 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 256 ratings2.3

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

Buyer demand · 11% of score2.7

100+ 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

The DE-AG-01 is a cordless angle grinder running on a 20V DC battery and spinning up to 11000 RPM, suited to cutting, grinding and rust removal without a cord.

11000 RPM sits toward the lower end for angle grinders, many of which run well above that, so this tool likely favors control on lighter tasks over rapid material removal. The 20V DC battery keeps it cordless for job site or shop use where an outlet is not close by.

20V DC battery
11000 RPM top speed
Cordless design
Model DE-AG-01

Who it's for

Good for DIYers and tradespeople doing occasional metal cutting, grinding or rust removal on the go. Less suited to continuous, heavy-duty grinding where corded tools sustain higher output for longer.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out

Cordless mobility on 20V DC battery
Suited to on-site cutting and grinding

What to check first

11000 RPM is modest versus many grinders
Disc size not specified

Performance notes

The 11000 RPM top speed governs how quickly the grinder removes material, and it runs on the modest side compared with many corded and cordless grinders, while the 20V DC battery is what keeps it cord-free.

Specifications

Brand	Cordless
Model	DE-AG-01
Power Source	Battery
Voltage	20 volts
Speed	11000 rpm

How it compares

This product against the closest alternatives we track in grinders.

Product	Amazon rating	Ratings	ProductDome score
Cordless DE-AG-01 GrinderThis product	4.1 / 5	64	3.7 / 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 Cordless DE-AG-01

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

What battery does the DE-AG-01 grinder use?

A 20V DC battery.

How fast does the DE-AG-01 spin?

Up to 11000 RPM.

Is the DE-AG-01 corded or cordless?

It is cordless, battery powered.