3M 3" P320A Hookit Gold Abrasive Disc 216U (914) is a high-quality abrasive disc designed for fine sanding, feather-edging, and surface preparation. Its P320A grit is ideal for creating smooth finishes before priming or painting. The Hookit attachment system allows for quick and easy disc changes, maximizing efficiency. The combination of aluminum oxide abrasive, A-weight paper backing, open coat construction, and load-resistant coating provides consistent performance and long disc life. Sold in boxes of 50.