Reaper Bones USA: Micro-Mesh Finishing File (08526)
This 5 3/4″ x 1/2″ size file tapers to a 15-degree angle, allowing you finishing capabilities you didn’t have before. Use for removing flash and surface imperfections and take advantage of the fact that they are long-lasting. After use, rinse in water, dry, and store for future use. Each file has a corresponding finer grade on the opposite side (4000/6000).
These are the same files that Reaper uses to clean its 3-D printed files in-house.