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230mm angle grinders are the go-to tool when a smaller grinder just won't cut it. The 230mm disc size handles heavy-duty cutting and aggressive material removal that 115mm and 125mm tools struggle with.
These are large grinders. They're built for steel fabrication, stone cutting, weld removal and serious surface prep. Most models run at around 6500 rpm and draw between 2000W and 2600W. That power comes with weight - expect 4kg to 6kg depending on the model.
When choosing a 9 inch grinder look at the no-load speed, spindle lock design and how easy it is to change the guard. A well-designed guard matters more than people think - especially when cutting stone or concrete.
Corded models deliver consistent power all day. Cordless angle grinders in this size need a high-capacity battery to perform properly so factor in battery compatibility with tools you already own.
For disc fitting always use the correct flange and check the arbor size. Most 230mm discs use a 22.23mm bore. Never fit a disc rated below the tool's maximum rpm.
