Ryobi
Ryobi P421 18V ONE+ 4-1/2 in. Cordless Angle Grinder (Tool Only)
$59Cheaper
Best Angle Grinders · head-to-head
Ryobi P421 18V ONE+ 4-1/2 in. Cordless Angle Grinder (Tool Only) vs Metabo WEV15-125 Quick 4-1/2 in./5 in. 13.5 A Variable Speed Corded Angle Grinder
A sourced, side-by-side comparison. Ryobi P421 18V ONE+ 4-1/2 in. Cordless Angle Grinder (Tool Only) is cheaper at $59. Every spec and price links to its source.
Which is better: the Ryobi P421 18V ONE+ 4-1/2 in. Cordless Angle Grinder (Tool Only) or Metabo WEV15-125 Quick 4-1/2 in./5 in. 13.5 A Variable Speed Corded Angle Grinder?
The Ryobi P421 18V ONE+ 4-1/2 in. Cordless Angle Grinder (Tool Only) wins 1 of the 1 specs we compare head to head; the other wins 0. The Ryobi P421 18V ONE+ 4-1/2 in. Cordless Angle Grinder (Tool Only) is the cheaper at $59. The Ryobi P421 18V ONE+ 4-1/2 in. Cordless Angle Grinder (Tool Only) both leads on specs and costs less — the straightforward pick.
Check Ryobi P421 18V ONE+ 4-1/2 in. Cordless Angle Grinder (Tool Only) price See Metabo WEV15-125 Quick 4-1/2 in./5 in. 13.5 A Variable Speed Corded Angle Grinder on Amazon
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Ryobi P421 18V ONE+ 4-1/2 in. Cordless Angle Grinder (Tool Only) |  Metabo WEV15-125 Quick 4-1/2 in./5 in. 13.5 A Variable Speed Corded Angle Grinder |
|---|---|---|
| US price | $59 | $239 |
| Brand | Ryobi | Metabo |
| Released | — | — |
| Disc size (in) | 4.5 in | 5 in |
| Power source | cordless | corded |
| Amps or voltage | 18 V | 13.5 A |
| Max (rpm) | 6500 | 11000 |
| Brushless | No | No |
| Switch type | trigger | slide |
| No volt release | — | Yes |
| Weight (lb) | 4.8 | 5.5 |
Sources — Ryobi P421 18V ONE+ 4-1/2 in. Cordless Angle Grinder (Tool Only): ryobitools.com (verified 2026-06-20). Metabo WEV15-125 Quick 4-1/2 in./5 in. 13.5 A Variable Speed Corded Angle Grinder: metabo.com (verified 2026-07-10).
What's the difference between the Ryobi P421 18V ONE+ 4-1/2 in. Cordless Angle Grinder (Tool Only) and Metabo WEV15-125 Quick 4-1/2 in./5 in. 13.5 A Variable Speed Corded Angle Grinder?
Where the two actually differ on the specs we track (6 of 8). Matching specs are omitted.
- Disc size (in): Ryobi P421 18V ONE+ 4-1/2 in. Cordless Angle Grinder (Tool Only) 4.5 in vs Metabo WEV15-125 Quick 4-1/2 in./5 in. 13.5 A Variable Speed Corded Angle Grinder 5 in
- Power source: Ryobi P421 18V ONE+ 4-1/2 in. Cordless Angle Grinder (Tool Only) cordless vs Metabo WEV15-125 Quick 4-1/2 in./5 in. 13.5 A Variable Speed Corded Angle Grinder corded
- Amps or voltage: Ryobi P421 18V ONE+ 4-1/2 in. Cordless Angle Grinder (Tool Only) 18 V vs Metabo WEV15-125 Quick 4-1/2 in./5 in. 13.5 A Variable Speed Corded Angle Grinder 13.5 A
- Max (rpm): Ryobi P421 18V ONE+ 4-1/2 in. Cordless Angle Grinder (Tool Only) 6500 vs Metabo WEV15-125 Quick 4-1/2 in./5 in. 13.5 A Variable Speed Corded Angle Grinder 11000
- Switch type: Ryobi P421 18V ONE+ 4-1/2 in. Cordless Angle Grinder (Tool Only) trigger vs Metabo WEV15-125 Quick 4-1/2 in./5 in. 13.5 A Variable Speed Corded Angle Grinder slide
- Weight (lb): Ryobi P421 18V ONE+ 4-1/2 in. Cordless Angle Grinder (Tool Only) 4.8 vs Metabo WEV15-125 Quick 4-1/2 in./5 in. 13.5 A Variable Speed Corded Angle Grinder 5.5