Chicago CP875 Grinder Review
Our verdict
The Chicago CP875 is a pneumatic die grinder that spins at 22500 RPM, weighs just 15.84 ounces, and earns a 4.7-star rating from 1,016 buyers at $74.99, combining excellent owner confidence with strong monthly sales in the air-powered die grinder segment.
Check price on AmazonBest for
Fabricators, mechanics, and metalworkers with access to a compressor who want a lightweight, high-RPM pneumatic die grinder at a competitive price
Skip if
Anyone without a compressed air supply; the CP875 requires an air compressor to operate and cannot run on electric or battery power
- Power Source Air Powered
- Speed 22500 RPM
- Motor 220 watts
- Weight 15.84 ounces
- Dimensions 4.88"L
- Priced 12% below the category median ($85.49 across 39 tracked models)
Our scorecard
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Owner rating4.7/5
4.7 average across 1,016 owner ratings
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Popularity4.6/5
1,016 owner reviews, more than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other power tools and workshop machinery we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
The Chicago CP875 is an air-powered die grinder that stands out in several ways: it is the only pneumatic tool in this batch, the lightest unit at 15.84 ounces, and one of the strongest performers on buyer metrics with a 4.7-star average from 1,016 reviews. At $74.99 with 200 units moving monthly, it is a proven, active seller in the professional trades community.
Running at 22500 RPM on compressed air, the CP875 delivers the kind of smooth, sustained high-speed rotation that pneumatic tools are known for, without the weight and heat of a corded electric motor. The 4.88-inch length makes it easy to maneuver in tight spaces, and the 15.84-ounce weight reduces fatigue significantly during extended sessions. The 220-watt equivalent output aligns with standard light die grinder applications.
For shops and garages that already run a compressor, the CP875 offers an excellent entry point into pneumatic die grinding. The combination of high RPM, low weight, strong community rating, and sub-$75 price is difficult to beat in this product class. The sole requirement is a reliable air supply, making it a non-starter for workshops without one.
Pros
- 4.7-star rating from 1,016 reviews confirms broad, consistent owner satisfaction
- 200 units purchased last month demonstrates strong active demand
- 15.84-ounce weight is the lightest in the batch by a large margin
- 22500 RPM delivers high-speed performance for precision metalwork and finishing
- $74.99 provides strong value for a pneumatic tool with over 1,000 verified reviews
Cons
- Requires a compressed air compressor; cannot be used without an air supply
- 4.88-inch listed length dimension only; full body dimensions are not published
- Air pressure and CFM requirements are not listed in the published specs
Specifications
| Power Source | Air Powered |
|---|---|
| Speed | 22500 RPM |
| Motor | 220 watts |
| Weight | 15.84 ounces |
| Dimensions | 4.88"L |
Performance notes
Air-powered at 22500 RPM, the Chicago CP875 is built for die grinding, deburring, porting, and detail finishing work. At 15.84 ounces and 4.88 inches, it is among the most ergonomic tools in the category. Pneumatic operation provides consistent power delivery as long as the compressor maintains adequate pressure. No CFM or inlet size is listed in the available spec data.
What buyers say
Owners consistently highlight the light weight, smooth high-RPM performance, and the value the CP875 delivers at $74.99 compared to higher-priced competitors. The recurring theme in positive reviews is how well the tool performs relative to its price. The primary complaint from a minority of buyers is inconsistency in fit or finish on some units, suggesting quality control variation.
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Frequently asked questions
What air pressure and CFM does the Chicago CP875 require?
Air pressure and CFM requirements are not listed in the published spec data for the CP875. Check the product listing or Chicago Pneumatic documentation for inlet size and compressor requirements before purchasing.
What accessories does the Chicago CP875 accept?
Accessory collet size is not specified in the available published specs. Review the product listing for compatible mounted points, burrs, and grinding stones to confirm accessory compatibility.
Have more questions about the Chicago CP875?
The ToolGalaxy team is here to help. Email us at hello@toolgalaxy.com.