BOSCH GWS12V-30N 12V Max Brushless Angle Grinder 3 Inch
- Maximum Rotational Speed: 19500 rpm
- Power Source: Battery
- Material Type: Blend
- Manufacturer Warranty Description: No
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
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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ASIN: B09LX43LC4Model: GWS12V-30NCategory: Power Grinders
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.
Pros and cons
- 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 |
| Dimensions & fit | |
| Item Weight | 1.7 poundslower than 68% of 107 power grinders |
| Item Dimensions L X W X H | 3.5 × 3.1 × 7.1 inches |
| Capacity & performance | |
| Maximum Rotational Speed | 19500 rpmhigher than 69% of 122 power grinders |
| Power & efficiency | |
| Power Source | Battery |
| Voltage | 12 voltslower than 96% of 103 power grinders |
| Construction & materials | |
| Material Type | Blend |
| Color | Blue |
| Included components | |
| Unit Count | 1 |
| Included Components | (1) GWS12V-30 12V Max 3 In. Angle Grinder; (1) Wheel Guard; (1) Grinding Disc; (1) Cutting Disc |
| Warranty & support | |
| Manufacturer Warranty Description | No |
| Other details | |
| Style Name | Classic |
| Item Type Name | Angle Grinder |
Closest rivals on specs
Gunpla 90 Degree Air Die Grinder with Sanding Discs 1/4 Inch- Item Weight 1.7 vs 1.92 pounds (-11%)
Frequently asked questions
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.