
Chicago Pneumatic CP872
Score: 82/100
Ingersoll Rand 301B
Score: 80/100Rankings

The Chicago Pneumatic CP872 is a high-performance straight pneumatic die grinder featuring a powerful 0.63 HP motor and low vibration levels. Its high air consumption and noise output are significant trade-offs that require robust infrastructure and safety gear. It is ideal for maintenance professionals and welders needing a lightweight, high-speed tool for general polishing and deburring.

The Ingersoll Rand 301B is a compact, right-angle pneumatic die grinder featuring a 0.25 hp motor and 21,000 rpm max speed, designed for precision tasks in confined spaces. It utilizes a durable aluminum housing and ball-bearing construction to ensure longevity and reduced vibration during operation. The tool is optimized for professional fabricators and machinists requiring high-speed grinding.
| Attribute | ![]() | ![]() |
|---|---|---|
27,000 RPMbest | 21,000 RPM | |
| ↓ lower better | 26 CFM | 6 CFMbest |
| ↓ lower better | 100.9 dB | 92 dBbest |
| ↓ lower better | 2.5 m/s²best | — |
| ↓ lower better | 0.57 kg | 0.46 kgbest |
240 mmbest | 134 mm | |
0.63 Wbest | 0.25 W | |
110 mmbest | 34 mm |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
General(1) | ||
Warranty | 1 year | 1 Year |
Safety & Comfort(1) | ||
Noise Level (dB) | 100.9 dB | 92 dB |
Compatibility & Controls(3) | ||
Collet Size | 1/4 inch | 1/4" |
Switch Type | Lock-off Lever | Lever |
Tool Type | Straight | Right Angle |
Performance(2) | ||
No-Load Speed (RPM) | 27000 RPM | 21000 RPM |
Motor Power (W) | 0.63 W | 0.25 W |
Dimensions(3) | ||
Overall Length (mm) | 240 mm | 134 mm |
Overall Width (mm) | 110 mm | 34 mm |
Overall Height (mm) | 100 mm | 74 mm |
Power & Air(4) | ||
Power Source | Pneumatic | Air |
Air Consumption (CFM) | 26 CFM | 6 CFM |
Exhaust Type | Rear | Front |
Air Inlet Size | 1/4 inch | 1/4" |
Ergonomics & Build(2) | ||
Weight (kg) | 0.57 kg | 0.46 kg |
Housing Material | Aluminum/Composite | Aluminum |

Products in the top-left offer the best value (high score, low price).

Professional sources emphasize the tool's reliability and safety features for maintenance tasks, highlighting its economic value and upgraded ergonomic design.
There is no available consumer feedback, ratings, or testimonials in the provided data. Retail sites list the product but do not provide user comments or aggregated scores, making it impossible to derive common themes or sentiment from everyday users.


Choose the CP872 for an economic, high-speed straight grinder with integrated safety and speed control features.

Supplier descriptions and industry editors highlight the Ingersoll Rand 301B as a durable, value-oriented tool trusted for years of service. The metal housing and vane motor are emphasized for their reliability in general use, with the 0.25 hp motor at 21,000 rpm cited as providing sufficient power for porting and deburring tasks.
Direct consumer reviews are scarce, but available data indicates a positive reception with a 4.7/5 rating on one platform. Users generally praise the tool's comfort, lightness, and power, with no common complaints surfacing in the provided research.