
Porter-Cable PC750AG 4-inch
Score: 75/100
DeWalt DCG408B
Score: 88/100Rankings

The DEWALT DCG408B is a lightweight, cordless 4.5-inch angle grinder featuring a brushless motor and advanced safety features like a kickback brake. Its portability and modern features make it ideal for on-site work, though it requires a separate battery and has lower power than corded models. It is best suited for professionals who value mobility and safety.

The Porter-Cable PC750AG is a lightweight, entry-level angle grinder suitable for occasional home use. Its main advantages are its low weight and comfortable soft-grip handle. However, it lacks advanced safety features like soft start or overload protection, limiting its suitability for heavy-duty professional work.
| Attribute | ![]() | ![]() |
|---|---|---|
900 wattsbest | 850 watts | |
10,000 rpmbest | 9,000 rpm | |
115 mmbest | 114 mm | |
120 voltsbest | 20 volts | |
| ↓ lower better | 1.36 kgbest | 1.61 kg |
7.5 ampsbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Power & Performance(6) | ||
Power Source | Corded | Cordless |
Motor Power (watts) | 900 watts | 850 watts |
No-Load Speed (rpm) | 10000 rpm | 9000 rpm |
Voltage (volts) | 120 volts | 20 volts |
Motor Type | Standard | Brushless |
Amperage (amps) | 7.5 amps | amps |
Dimensions & Weight(1) | ||
Weight (kg) | 1.36 kg | 1.61 kg |
Compatibility & Build(1) | ||
Wheel Diameter (mm) | 115 mm | 114 mm |
Safety & Controls(1) | ||
Switch Type | Lock-On | Paddle Switch |

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