Flap discs are a tool specially designed for use with an angle grinder. These discs are slightly flexible, meaning they last longer than standard metal grinding discs, making them excellent for sanding, smoothing out welds and finishing off your workpieces. We stock a wide range of flap discs in a variety of sizes and grits such as 40, 80 and 60 to suit all of your needs and help you achieve the desired smoothness.