Gunpla 90 Degree Air Die Grinder with Sanding Discs 1/4 Inch
- Maximum Rotational Speed: 20000 rpm
- Power Source: Pneumatic
- Item Weight: 1.92 pounds
- Color: Black
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A lightweight, air-powered grinder spinning to 20,000 RPM, built for detail grinding and deburring rather than heavy stock removal.
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ASIN: B0F5H51V7RModel: 041025Category: Power Grinders
Overview
The Gunpla #041025 is an air-powered grinder that spins up to 20,000 RPM and weighs under 2 pounds. Its pneumatic design and light weight place it in the die grinder category, used for detail grinding, deburring and polishing rather than heavy material removal.
Running on shop air rather than electricity or battery means output depends on your compressor's pressure and volume, not a motor or charge level. At 1.92 pounds, it is light enough for extended one-handed detail work.
- Air powered pneumatic design
- 20,000 RPM speed
- 1.92 pound weight
- Suited to detail grinding and deburring
Who it's for
Suits anyone with a shop air compressor doing detail grinding, deburring or polishing on metal or other small parts. Not an option if you lack compressed air, since it will not run on electricity or battery.
Pros and cons
- Under 2 pounds for extended one-handed use
- 20,000 RPM suits fine detail and deburring work
- No battery to charge, runs on shop air
- Requires a compatible air compressor to operate
- Not suited to heavy material removal at this weight class
Performance notes
At 20,000 RPM, this pneumatic grinder is geared toward fine detail grinding and deburring rather than bulk material removal, and running it depends on your air compressor's output rather than a battery or plug. The sub-2-pound weight keeps it easy to maneuver for extended work.
Specifications
| Brand | Gunpla |
|---|---|
| Model | 041025 |
| Dimensions & fit | |
| Item Weight | 1.92 poundslower than 65% of 107 power grinders |
| Capacity & performance | |
| Maximum Rotational Speed | 20000 rpmhigher than 70% of 122 power grinders |
| Minimum Speed | 2000 rpm |
| Power & efficiency | |
| Power Source | Pneumatic |
| Construction & materials | |
| Color | Black |
| Included components | |
| Included Components | 1 |
| Other details | |
| Other Special Features Of The Product | Compact |
| Recommended Uses For Product | Grinding, Deburring, Engraving, Polishing, Cutting, Cleaning |
Closest rivals on specs
BOSCH GWS12V-30N 12V Max Brushless Angle Grinder 3 Inch- Item Weight 1.92 vs 1.7 pounds (+13%)
Dynabrade 53812 Straight-Line Die Grinder 0.7 HP- Item Weight 1.92 vs 2.3 pounds (-17%)
Frequently asked questions
Does the Gunpla #041025 need an air compressor?
Yes, it is air powered, so it requires a compatible compressor to run.
How fast does this grinder spin?
It reaches up to 20,000 RPM.
How much does it weigh?
It weighs 1.92 pounds.