BOSCH GWS12V-30N Grinder
- Grinder
- Battery
- 1.7 pounds
- 12 volts
- More reviewed than 65%
A genuinely portable option for Bosch 12V owners who need occasional grinding without hauling a cord, provided the disc size on offer matches the job.
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How it ranks among the 150 grinders we track
4.6★ across 371 Amazon ratings, Bayesian-smoothed toward the category average.
371 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
50+ bought on Amazon 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: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
The Bosch GWS12V-30N is a 12 volt cordless angle grinder built for the same 12V max battery platform as other Bosch compact tools. At about 1.7 pounds bare, it suits close, one-handed grinding and cutting jobs rather than heavy stock removal.
This is a small-body grinder, not a full-size corded angle grinder, so read the size class before comparing it against 4.5 inch corded models. Bosch does not list a disc diameter in this data, so confirm wheel size fits your accessories before ordering. Running at 19,500 RPM, it spins fast for a battery tool in this class.
- 12 volt Bosch battery platform
- 19,500 RPM no-load speed
- 0.77 kilogram bare tool weight
- Compact one-handed body
Who it's for
Fits users who already own Bosch 12V batteries and want a light grinder for metal fabrication touch ups, rust removal, or cutting small stock in tight spots. Less suited to anyone needing sustained heavy grinding, where a corded or higher voltage tool holds up longer.
Strengths and trade-offs
Drawn from this product's published specifications.
- Compact and light at under 2 pounds bare
- High no-load speed for fast cutting on small discs
- Cordless convenience for tight or awkward spots
- Shares Bosch's 12V battery platform
- No stated disc diameter to confirm accessory fit
- Battery and charger inclusion not specified
- Runtime limited by 12V battery capacity versus corded tools
Performance notes
At 19,500 RPM the motor spins quickly for its class, which favors fast material removal on small discs over slow, controlled grinding. Cordless operation trades outright power and runtime for the ability to work anywhere without a cord underfoot. Bare tool weight of 0.77 kilograms keeps it maneuverable, though the listing doesn't specify battery or charger inclusion.
Specifications
| Brand | Bosch |
|---|---|
| Model | GWS12V-30N |
| Power Source | Battery |
| Item Weight | 1.7 pounds |
| Voltage | 12 volts |
| Speed | 19500 rpm |
Other Bosch grinders
How it compares
This product against the closest alternatives we track in grinders.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| BOSCH GWS12V-30N GrinderThis product | 4.6 / 5 | 371 | 4.0 / 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 Bosch GWS12V-30N
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What voltage battery does the Bosch GWS12V-30N use?
It runs on Bosch's 12 volt battery platform, the same one used across Bosch's compact 12V max tools.
How fast does the GWS12V-30N spin?
Bosch lists a no-load speed of 19,500 RPM for this grinder.
How much does the Bosch GWS12V-30N weigh?
The bare tool weighs about 0.77 kilograms, roughly 1.7 pounds.