Ingersoll Rand 308B
Score: 78/100
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 Ingersoll Rand 308B is a lightweight, straight air die grinder designed for precision tasks, featuring a 0.33 HP motor that delivers 25,000 RPM. Its high noise level and significant air consumption are the main drawbacks. It is best suited for professional welders and fabricators needing precision in confined areas where right-angle tools cannot reach.
| Attribute | | |
|---|---|---|
25,000 RPMbest | 25,000 RPMbest | |
| ↓ lower better | 28 CFMbest | — |
| ↓ lower better | 103 dBbest | — |
| ↓ lower better | 0.46 kgbest | 1.51 kg |
174 mm | 432 mmbest | |
246 W | 500 Wbest | |
100 mm | 102 mmbest | |
202 mmbest | 127 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, 6 mm | 1/4" |
Switch Type | Safety Lock Lever | Dual-position variable-speed rocker |
Tool Type | Straight | Die Grinder |
Performance(1) | ||
Motor Power (W) | 246 W | 500 W |
Dimensions(3) | ||
Overall Length (mm) | 174 mm | 432 mm |
Overall Width (mm) | 100 mm | 102 mm |
Overall Height (mm) | 202 mm | 127 mm |
Power & Air(1) | ||
Power Source | Pneumatic | Cordless |
Ergonomics & Build(3) | ||
Weight (kg) | 0.46 kg | 1.51 kg |
Handle Type | Straight | Barrel grip |
Housing Material | Composite | Multi |
Products in the top-left offer the best value (high score, low price).
Professional sources praise the 308B for its powerful 0.33 HP motor and 25,000 RPM speed housed in a compact 6.85-inch body, calling it ideal for industrial-duty tasks with superior ergonomics and long-lasting construction.
Search results lack extensive user reviews, but available notes emphasize praise for its lightweight feel, maneuverability, and consistent power in everyday shop use like de-burring and polishing.
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”
