Angle grinder is a Power tool (hand-held).Used for Cutting, grinding, polishing, s anding metal, stone, tiles, wood (with the right disc). It has a motor with a rotating abrasive disc, mounted at a right angle to the handle. Runs on electricity (corded or cordless) . while angle valve is a plumbing/pipe fitting device.Controls the flow of water or other fluids in pipelines. Usua... https://shamsbuilding.ae