WORKPRO W182004A Grinder
- Grinder
- Pneumatic
- 4.3 ounces
- 25000 rpm
- More reviewed than 80%
A featherweight, 25,000 RPM air die grinder built for detail work wherever shop air is already on hand.
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How it ranks among the 150 grinders we track
4.5★ across 799 Amazon ratings, Bayesian-smoothed toward the category average.
799 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
400+ 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 WORKPRO W182004A is an air powered grinder that spins up to 25,000 RPM while weighing just 4.35 ounces. That combination of high speed and low mass is typical of a compact pneumatic die grinder rather than a full-size bench or angle grinder.
Air powered tools in this weight class are built for one-handed detail work, such as deburring or polishing in tight spaces, and they rely on a shop air compressor rather than a battery or cord. The listing does not state collet size or required air pressure, so pairing it with the right bits and compressor takes a separate check.
- 25,000 RPM rated speed
- Air powered, not battery or corded
- 4.35 ounce weight
- WORKPRO model W182004A
Who it's for
Fits users who already run a shop air compressor and want a light, high-speed tool for detail grinding or deburring. Not a fit for anyone without a compressed air supply, since there is no battery or cord option.
Strengths and trade-offs
Drawn from this product's published specifications.
- Very light at 4.35 ounces
- High 25,000 RPM speed rating
- Requires a separate air compressor
- Collet size and air pressure not listed
Performance notes
The 25,000 RPM rating is high even for pneumatic die grinders, which should suit fast material removal on small areas, though actual cutting speed depends on the pressure and volume the compressor supplies. At 4.35 ounces it should stay easy to hold steady for extended detail work, but collet size is not listed, so bit compatibility needs separate confirmation.
Specifications
| Brand | WORKPRO |
|---|---|
| Model | W182004A |
| Power Source | Pneumatic |
| Item Weight | 4.3 ounces |
| Speed | 25000 rpm |
How it compares
This product against the closest alternatives we track in grinders.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| WORKPRO W182004A GrinderThis product | 4.5 / 5 | 799 | 4.2 / 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 |
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Questions about the WORKPRO W182004A
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Does the WORKPRO W182004A need a compressor?
Yes, it is air powered and runs off shop compressed air rather than a battery or cord.
How fast does it spin?
It is rated at 25,000 RPM.
How much does it weigh?
4.35 ounces.