The Norton Crystolon SC Round File is ideal for deburring, chamfering, radiusing, lapping, honing, and cleaning radius tools to a burr-free edge, as well as dimensioning compound curves on templates. The silicon carbide abrasive delivers fast stock removal for quick edge shaping with minimal loading, providing a uniform finish while retaining shape. Choose the medium grit file to produce the average edge needed for most tools and the fine grit file for an even sharper edge.