Metabo G18ST Grinder
- Grinder
- 3950 watts
- Battery
- 10.8 pounds
Cordless convenience comes with extra weight here; a solid pick if working without an outlet matters more than shaving pounds off the tool.
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How it ranks among the 150 grinders we track
4.5★ across 255 Amazon ratings, Bayesian-smoothed toward the category average.
255 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
Modest tracked demand last month.
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
Metabo's G18ST angle grinder runs on battery power and spins its disc at 6,000 RPM, weighing 10.8 pounds as part of the brand's cordless grinder lineup.
Cordless angle grinders trade outlet dependence for battery runtime, which matters most on jobsites without easy power access. At 10.8 pounds this is on the heavier side for a handheld grinder, so expect more fatigue on overhead or extended work than with a lighter corded model. Voltage and motor wattage figures in the source data conflict with a cordless power source, so those numbers are left out here rather than reported as fact.
- Battery-powered angle grinder
- 6,000 RPM rated speed
- 10.8 pound tool weight
- Metabo cordless grinder line
Who it's for
Tradespeople and serious DIYers doing metal fabrication, weld cleanup, or masonry cutting away from an outlet get the most from this grinder. Occasional users who only need a grinder a few times a year may find the weight and cordless-tool investment hard to justify.
Strengths and trade-offs
Drawn from this product's published specifications.
- Cordless, no outlet needed on site
- 6,000 RPM disc speed suits metal cutting and grinding
- 10.8 pounds is heavy for extended handheld use
- Battery and charger inclusion is not confirmed in the listing data
Performance notes
The 6,000 RPM disc speed here lands in a typical range for cutting and grinding wheels rated for angle grinders, though actual cutting speed also depends on disc diameter and material, neither of which is listed. Tool weight of 10.8 pounds does not include the battery, which adds further heft in use.
Specifications
| Brand | Metabo |
|---|---|
| Model | G18ST |
| Dimensions & fit | |
| Item Weight | 10.8 pounds |
| Dimensions | 12 × 12 × 12 inches |
| Capacity & performance | |
| Speed | 6000 rpm |
| Power & efficiency | |
| Motor Power | 3950 watts |
| Power Source | Battery |
| Voltage | 120 volts |
Other Metabo grinders
How it compares
This product against the closest alternatives we track in grinders.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Metabo G18ST GrinderThis product | 4.5 / 5 | 255 | 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 |
Similar grinders from other brands
Questions about the Metabo G18ST
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Is the Metabo G18ST corded or cordless?
It is listed as battery powered.
What disc speed does the G18ST run at?
It is rated at 6,000 RPM.
How much does the G18ST weigh?
10.8 pounds for the tool itself.