Angle Grinders are versatile, handheld power tools that spin an abrasive disc at high speed, enabling tasks such as grinding, cutting, sanding and polishing on a variety of materials. They deliver concentrated power in a compact form, making them indispensable for metalwork, masonry and fabrication.
Key Characteristics:
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Disc Diameter: Common sizes include 100 mm, 115 mm, 125 mm, 150 mm and 230 mm—larger discs cover more area but require more power.
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Power Source: Available as corded (mains-powered) or cordless (battery-powered) models; cordless versions grant portability at the expense of limited run-time.
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No-Load Speed: Typically ranges from 5 000 RPM to 12 000 RPM; higher speeds improve cutting efficiency but can increase disc wear and operator fatigue.
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Spindle Thread & Flange: Standardised threads (e.g. M14 or 5/8″–11 UNC) ensure compatibility with a wide range of discs and accessories.
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Safety Features: Often include adjustable guard, anti-kickback clutch, dead-man switch and soft-start circuitry to reduce torque kick and improve operator control.
Typical Applications:
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Grinding weld seams, burr removal and surface preparation on steel and other metals
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Cutting concrete, brick, tile and stone with diamond-tipped or masonry discs
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Sanding and polishing metal, stone or composite surfaces using flap or fibre discs
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Removing rust, paint and adhesives with wire-brush or stripping discs
Selection Considerations:
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Task & Material: Choose disc size and RPM rating to match the job—cutting masonry demands diamond blades, whereas metalwork benefits from fibre or resin-bond discs.
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Ergonomics: Look for slim barrels, side-handle options and anti-vibration features to reduce fatigue during prolonged use.
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Power & Duty Cycle: Higher-amperage corded grinders or high-capacity batteries deliver longer continuous operation; consider ventilation and cooling for heavy-duty work.
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Accessory Compatibility: Verify spindle thread matches your preferred disc brands and that replacement guards and flanges are readily available.
