Sand soft materials with this ProSand A975 fine grit paper H&L vacuum disc. With a fiber-reinforced, flexible B-weight latex-saturated backing and P-graded seeded-gel ceramic alumina abrasive coating, this fine paper disc delivers fast, consistent cuts and a long life with reduced tearing risk. Ideal for soft, high-loading materials, this vacuum disk uses a water-based non-pigmented No-Fil coating to reduce surface loading while the vacuum holes whisk away fine dust. Attach this paper to your random orbital sander with the hook and loop back and use it for demanding, highly specialized manufacturing and machining jobs on soft metal and composites.; ; Brand Name: Norton Sub Brand: ProSand Size: 5 in. Material: Ceramic Alumina Attachment Style: Hook and Loop Product Type: Sanding Disc Grit: 320 Grit Grade: Extra Fine Number in Package: 50 pk Number of Holes: 8 Compatibility: Random Orbital Sander, Right Angle Grinder Maximum Speed: 15000 rpm