Kraft Tool Co.® DW172 3/8" Nap Roller Cover for 9" Roller Frame 6 per Case. Shed resistant nap rollers apply a variety of materials including adhesives, epoxies, paints, urethanes, and industrial floor coverings. The 3/8" nap provides the perfect amount of coverage on semi-smooth surfaces such as drywall. Use this roller for walls and ceilings. Ideal for applying gloss paints. The phenolic inner core is solvent resistant for long wear. Fits on 9" Roller Frame (DW179), sold separately.