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A 125mm angle grinder is one of the most practical tools you can own. The 125mm disc size sits between the compact 115mm and the heavier 150mm making it a solid all-rounder for most jobs.
These grinders handle metal cutting, weld dressing, rust removal and surface preparation with ease. The disc size also means a lighter tool than larger models so fatigue is less of an issue on long jobs.
When choosing between corded and cordless models think about where you work. Cordless grinders give you freedom on site but check the battery voltage - 18V is the minimum worth considering for serious work.
Motor power matters too. Look for at least 850W on corded models for anything beyond light grinding. No-load speed is typically around 11000 RPM on most 125mm grinders which suits both cutting discs and flap discs.
Soft-start and anti-kickback features are worth paying attention to. They are not just extras - they genuinely reduce the risk of disc breakage and loss of control. Variable speed is useful when switching between materials like stone and stainless steel.
Disc compatibility matters. Most 125mm angle grinders use an M14 spindle thread which is standard across the industry. Always match the disc to the material and check the maximum RPM rating on the disc before use.
