
Chicago Pneumatic CP872
Score: 82/100
DeWalt DCG426B
Score: 85/100Rankings

The DeWalt DCG426B is a powerful cordless die grinder featuring a brushless motor and variable speed control up to 25,000 RPM. Its main trade-off is a switch design that requires an adjustment period and a weight that is slightly higher than some competitors. It is best suited for professional fabricators and welders needing cordless precision in tight spaces.

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.
| Attribute | ![]() | ![]() |
|---|---|---|
27,000 RPMbest | 25,000 RPM | |
| ↓ lower better | 26 CFMbest | — |
| ↓ lower better | 100.9 dBbest | — |
| ↓ lower better | 2.5 m/s²best | — |
| ↓ lower better | 0.57 kgbest | 1.51 kg |
240 mm | 432 mmbest | |
0.63 W | 500 Wbest | |
110 mmbest | 102 mm |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
General(1) | ||
Warranty | 1 year | 3 Year Limited |
Compatibility & Controls(3) | ||
Collet Size | 1/4 inch | 1/4" |
Switch Type | Lock-off Lever | Dual-position variable-speed rocker |
Tool Type | Straight | Die Grinder |
Performance(2) | ||
No-Load Speed (RPM) | 27000 RPM | 25000 RPM |
Motor Power (W) | 0.63 W | 500 W |
Dimensions(3) | ||
Overall Length (mm) | 240 mm | 432 mm |
Overall Width (mm) | 110 mm | 102 mm |
Overall Height (mm) | 100 mm | 127 mm |
Power & Air(1) | ||
Power Source | Pneumatic | Cordless |
Ergonomics & Build(3) | ||
Weight (kg) | 0.57 kg | 1.51 kg |
Handle Type | Lever | Barrel grip |
Housing Material | Aluminum/Composite | Multi |


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.

Professional reviewers rate the DCG426B highly for its portability and power, noting that its 500 MWO output rivals pneumatic tools. The brushless motor efficiency is praised for beating corded grinders in runtime, while the dual-switch design is highlighted as a game-changer for overhead work.
Everyday users and professionals praise the tool for its smooth high-speed operation and excellent LED visibility in tight spaces like engine bays. The ergonomic grip is frequently cited as preventing slippage during long sessions.
“Smooth 25,000 RPM for porting heads-battery lasts 1-2 hours on heavy cuts”

“LEDs light up tight engine bays perfectly; no cords snagging”

“Switch takes getting used to-accidental speed changes mid-job”

