Angle Grinders – How to Choose the Right Tool for Grinding and Cutting

Disc diameter – the key parameter

Angle grinders with 125mm discs are ideal for lighter tasks, weld grinding and working on smaller metal surfaces. Models with 230mm discs allow deeper cuts and faster processing of larger surfaces, but they are heavier and require more motor power. For a home workshop and occasional jobs, a 125mm model is more practical and safer to handle.

Corded or battery-powered

Corded grinders offer constant power without charging breaks and are suitable for intensive work on construction sites. Battery-powered variants like Stanley aku ugaona brusilica FMC761M2 bring mobility and operation in places without electricity, but require spare batteries for extended use. Brands such as BOSCH, MAKITA and DEWALT offer reliable battery systems where multiple tools share the same battery platform.

Motor power and rotation speed

For grinding and cutting metal, you need a motor of at least 750W for 125mm models, or 2000W for 230mm grinders. No-load speed ranges from 10,000 to 12,000 RPM – higher speeds enable cleaner cuts but also faster disc wear. Variable speed control is useful when working with different materials.

Safety features

The protective guard must be adjustable and firmly mounted – never operate without it. Automatic spindle lock makes disc changes easier without additional tools. Restart protection systems prevent accidental startup after power interruption. Brands like METABO and BOSCH include multiple safety mechanisms as standard.

Accessories and proper use

Always use diamond discs for cutting stone and concrete, and abrasive discs for metal. Wire brushes, flap discs and grinding discs with different grits expand the range of applications. Regularly check that the disc is undamaged before switching on, and never force the grinder – let the tool work at its own pace.

Selection and Pricing

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