Quick view Moore 7/8" Pin Hole Sanding Discs-Box of 300 Pcs Sold in boxes of 300 DiscsMade of Aluminum Oxide, Red-Brown/green brown in Color.7/8" Diameter Pin Hole Sanding Discs. Comes in Fine/Mediu and Coarse. Ikohe Adalox pin hole discs are made of aluminum... MSRP: Was: Now: $27.00 Choose Options Compare