Ryobi R18AG
Score: 72/100
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 Ryobi R18AG-0 is a lightweight, cordless angle grinder designed for users already invested in the Ryobi 18V ecosystem. Its key strength lies in its ergonomic GripZone+ handle and tool-less guard adjustment, which enhance usability. However, the brushed motor and lower RPM make it less suitable for heavy-duty professional tasks compared to brushless models.
| Attribute | | |
|---|---|---|
— | 850 wattsbest | |
7,500 rpm | 9,000 rpmbest | |
115 mmbest | 114 mm | |
18 volts | 20 voltsbest | |
| ↓ lower better | 2.1 kg | 1.61 kgbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Power & Performance(3) | ||
No-Load Speed (rpm) | 7500 rpm | 9000 rpm |
Voltage (volts) | 18 volts | 20 volts |
Motor Type | Brushed | Brushless |
Dimensions & Weight(1) | ||
Weight (kg) | 2.1 kg | 1.61 kg |
Compatibility & Build(2) | ||
Wheel Diameter (mm) | 115 mm | 114 mm |
Spindle Thread | M14 | 5/8-11 |
Safety & Controls(2) | ||
Switch Type | Two-stage | Paddle Switch |
Guard Type | Tool-less adjustable | Standard |
Products in the top-left offer the best value (high score, low price).
