VSM Metal Sanding Bands: 1.Material: VSM Grain. 2.Size:1" * 1", 1" * ... " * 3" 3.Grit:24#-120# 4.OEM Acceptable VSM Metal Sanding Bands: 1. About the Grain: This grain we import from ... our factory, and used for removing the internal surface of cylinders, imperfections, and burrs on curved, contoured or hard to reach ...