|The Fishhook File is an aluminum rod with a fine ceramic and diamond coating designed for sharpening fish-hooks. It is included on some older Wenger models designed for fishermen. The file has a groove on one side to sharpen the points of the fish hooks. The file is mounted in a metal housing with a white primer like finish that serves as the pivoting attachment method for the tool. The Diamond-coated ceramic file is also available with a Fly-Tying Notch. The sharpener itself is made of a black or light blue ceramic material. Discontinued tool.||
- The diamond impregnated ceramic file is either light blue or black in color. Current it is not known if there is any significant functional different between the two ceramic materials.
- The Fly-Tying Notch was only included on some files, depending on the knife model that contained the file.
- The Fly-Tying Notch was sometimes cut before the ceramic coating was applied, and sometime it was cut afterwards showing the bare metal.