Graphical Construction Glossary >> General Construction >> Power Tools >> Angle Grinder
As usual with this type of tool heavy protective clothes (I use a leather apron) and hand and eye protection must be worn when using these tools.
A small one hand operation grinder with a wire brush attachment for cleaning up steelwork. In particular this set-up is good for cleaning welds.
The photos on this page show a selection of the accessories that can be used in this most versatile of tools. The photos also show two of the most popular sizes. The 100mm (plus the 115mm) ones are fine for single handed use, while the larger ones at 225mm carry a lot more punch and need both hands to use safely.
A 225mm Makita electric grinder with a so called Turbo diamond disk for rough grinding of concrete.
Angle-grinders are used extensively by rescue services for cutting steel etc. and in these cases they are either air driven or with small combustion engines.
Above is a grinder with diamond saw blade used for cutting concrete. This is an example of a Straight grinder blade. They are designed for cutting. They are NOT designed for grinding. There are many types of abrasive blades to suit this set-up.
Above is what is know as a Depressed Centre grinder disk. These disks are designed for grinding surfaces and edges. They are thicker and stronger than cutting disks. They allow for fairly flat angle of work.
The details on the back as seen above are all important in selecting the right disk for the job.
The angle grinder is a potentially dangerous tool and the guard should always be used and it should be turned to the best position to guard the user from sparks. Usually it is mounted with a ring joined with a screw and nut and loosening the screw allows the guard to rotate.
Every angle grinder comes with it's own set of tools, nuts and backing plates to change the blades and disks. There is a spanner to hold the shaft from turning and one to move the face nut.
Also see the page on Straight Grinders
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