3M 99421NA Wetordry Sanding Sheets are designed for smooth finishing and between-coat sanding on a variety of surfaces. These 320 grit sheets can be used wet or dry and are offered in new condition in a pack of 250. Key Features: Part Number: 99421NA Brand: 3M Product Type: Wetordry Sanding Sheets Grit: 320 Pack Quantity: PK250 Condition: New Wet or dry use
