
Ryobi R18AG
Score: 72/100
Metabo HPT G12SR4
Score: 78/100Rankings

The Metabo HPT G12SR4 is a compact, lightweight angle grinder that offers excellent value by including five grinding wheels and a hard case. Its Quick-Off safety feature and robust build quality make it a reliable choice for various tasks. It is best suited for users who prioritize portability and accessory inclusion.

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 | ![]() | ![]() |
|---|---|---|
— | 980 wattsbest | |
7,500 rpmbest | — | |
115 mmbest | 115 mmbest | |
18 volts | 120 voltsbest | |
| ↓ lower better | 2.1 kg | 1.81 kgbest |
— | 6.2 ampsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Power & Performance(3) | ||
Power Source | Cordless | Corded Electric |
No-Load Speed (rpm) | 7500 rpm | N/A rpm |
Voltage (volts) | 18 volts | 120 volts |
Dimensions & Weight(1) | ||
Weight (kg) | 2.1 kg | 1.81 kg |
Compatibility & Build(1) | ||
Spindle Thread | M14 | 5/8-11 UNC |
Safety & Controls(2) | ||
Switch Type | Two-stage | Slide |
Guard Type | Tool-less adjustable | Adjustable |


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