Norton 37C Square File

Choose the Norton Crystolon SC Square File for a variety of applications, including dimensioning keyways to maintain fit, stoning faces on router bits, touching-up edges of reamer teeth, lapping/honing to close tolerances to produce the finest edge on precision instruments, die work and delicate tools. Designed to hold its shape, these files sharpen edges fast and achieve a consistent finish thanks to the premium silicon carbide abrasive. The medium grit file is the best choice for producing good, sharp edges for most tools, while the fine grit is best for when you need an even sharper edge.