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WORKPRO

WORKPRO W182004A Straight Air Die Grinder 1/4 Inch

  • Maximum Rotational Speed: 25000 rpm
  • Power Source: Pneumatic
  • Material Type: Aluminum
  • Item Weight: 0.27 pounds

Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A featherweight, 25,000 RPM air die grinder built for detail work wherever shop air is already on hand.

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ASIN: B08ZH9YBY5Model: W182004ACategory: Power Grinders

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.

Pros and cons

Pros
  • Very light at 4.35 ounces
  • High 25,000 RPM speed rating
Cons
  • 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

BrandWORKPRO
ModelW182004A
Dimensions & fit
Item Weight0.27 poundslower than 97% of 107 power grinders
Capacity & performance
Maximum Rotational Speed25000 rpmhigher than 85% of 122 power grinders
Power & efficiency
Power SourcePneumatic
Construction & materials
Material TypeAluminum
ColorBlack, Red
Included components
Unit Count1
Other details
Style NameChild,Safety

Closest rivals on specs

DEWALT DWMT70783 Straight Die Grinder
  • Item Weight 0.27 vs 0.5 pounds (-46%)
EMAX Straight Shaft Air Die Grinder 1/4 Inch
  • Item Weight 0.27 vs 0.81 pounds (-67%)
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Frequently asked questions

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.