PFERD TOOLS Diamond handy file set 5-piece 8 1/2" D126 (medium) shank forged/can be used without a handle

Diamond files and sheets are used when conventional files fail due to the hardness of the workpiece material. Diamond files and sheets are also used for processing hardened steel. Using these products does not generate much heat, which prevents chemical wear. This allows for a longer service life for the high hardness diamond grain. These diamond sheets are ideal for larger surfaces. Convex and concave contours can be worked on with relatively little effort.