●Benchmark Abrasives 4-1/2" diameter and 7/8" arbor premium ceramic resin fiber discs are commonly used for surface preparation, blending, chamfering, paint or rust removal, etc. ●Ceramic resin fiber discs are made by electrostatically depositing grains of aluminum oxide on heavy-duty vulcanized fiber backing with heat-resistant phenolic resins. ●Designed to meet industrial standards, our fiber discs are recommended to be used with power tools such as right-angle grinders. Ceramic resin fiber grinding discs are best for cool, rapid stock removal. ●Efficient ceramic resin fiber discs are used in various industries like automotive, DIY, transportation, woodworking, shipbuilding, foundries, construction, fabricating, etc. ●All of our abrasive products are made with quality materials and exceed both ANSI and EU European Standards. We trust in delivering high-quality products to the end-user. Customer satisfaction is the lifeline of our brand.