Angle grinders are often referred to as circular saws. They are used for cutting metal and stone. The unit consists of a blade, which is often referred to as the ‘cutting disc’, and handle for the user to hold and guide the grinder and usually a power cord for connection to the mains electical supply.
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Angle Grinder Blades
The blades or ‘cutting discs’ as they are often called vary according to the type of the material that they are designed to cut. An example would be that a thicker disc would be used to cut a paving slab than a sheet of marble. Some of the discs are designed to cut, whilst others are designed to grind (see cut and grind below).
Cut & Grind
As the name suggestions Angle grinders are not only used for cutting, they are designed to grind (or smooth) rough edges or areas on a heavyweight surface.
If you’re looking for a really tough cutting disc then look for the ones with a diamond-impregnated surface, these will have greater resilience when it comes to cutting through the tougher materials. With a standard disc the surface does wear away during cutting so that the disc becomes smaller in diameter during cutting. However, it will cost you more to splash out on diamond blades although they will last you longer.
When using an angle grinder you should avoid any sideways motion on the disc and only ever move the grinder in one direction (as indicated in the manufacturers instruction manual. If you attempt to move the grinder in the opposite direction you risk losing control and causing yourself or somebody else serious injury.
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