Select your task and material to find the right grinder wattage and disc size. Avoid underpowered tools that overheat or stall.
| Disc Size | Typical Power | Max RPM | Best For |
|---|---|---|---|
| 100mm (4") | 500–750W | 11,000 RPM | Light metalwork, small jobs |
| 115mm (4½") | 700–1,000W | 11,000 RPM | General DIY, thin metal, tile |
| 125mm (5") | 900–1,200W | 10,000 RPM | Most popular — steel, stone, concrete |
| 180mm (7") | 1,500–2,000W | 8,500 RPM | Heavy steel, concrete cutting |
| 230mm (9") | 2,000–2,500W | 6,600 RPM | Professional heavy-duty cutting |
Shop angle grinders and cutting discs at Askpi Systems.