? Quick-Change Cloth Disc,Quick Change Discs ? The BlueFire R884P coarse grit TS (Type II) quick-change cloth disc delivers powerful performance for all of your most demanding tasks. Grind through difficult exotic alloys and tackle high-pressure applications with ease thanks to this disc's durable, waterproof Y-weight polyester backing. A semi-open coat diminishes loading, so you can flawlessly deburr and blend soft metals, such as brass, bronze, and carbon steels, as well as delicate wood surfaces. This coarse grit disc's premium zirconia-plus grain remains sharp to consistently produce aggressive cuts, and it boasts an up to 30 percent longer life span than similar discs from competitors. ? Premium, versatile, self-sharpening zirconia plus grain provides aggressive cut and up to 30% longer life vs. competitive zirconia discs ? Semi-open coat minimizes loading on soft metals (aluminum, brass, and bronze) and wood, as well as stainless and carbon steels ? Durable Y-weight, polyester waterproof backing stands up to demanding applications: high-pressure and hard-to-grind exotic alloys ? Coarse grit excels at stock removal, weld blending, and deburring ? 24 and 36 grit are recommended for heavy stock removal