Angle Grinders are a truly helpful welding instrument that you will find in every metal-working shop. They\’re a handheld tool that use discs to cut metal, smooth a weld, eliminate rust and crush the grooves in your metal. During MIG or TIG welding, you\’ll need to set up your metal so that you are welding on a spotless surface. You will need to tidy up the weld subsequently so it looks perfect and smooth. An Angle Grinder is an ideal apparatus that will save you long periods of manual work.