Learn how angle grinders work, the different types of blades and how to change them, plus get tips on how best to use a grinder.
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© 2007 Dorling Kindersley Limited
Some discs are designed to cut, others to grind. The diamond-impregnated blades (right) have a diamond coating along the rim of each segment, therefore giving the blade greater resilience, longevity and a higher price tag. With standard grinding discs (left), the surface wears away in cutting, so the disc gradually becomes smaller in diameter.
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