An angle grinder is a hand-held grinder that features a right-angled gear-head along with an attached abrasive disc which is usually used for cutting, grinding, and polishing. Also, known as a side or disc or angle grinder, it can be powered in three ways- through a petrol engine, compressed air, or an electric motor.
Applications
 :- Remove Rust. 
 - Cut Ceramic Tiles.
 - Remove Mortar. 
 - Stone Cutting. 
 - Cleaning Metal. 
 - Cutting Metal. 
 - Sharpening Tools.