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.

Fish Hook File in Troller Model Fish Hook File with Fly-Tying Notch

Variations

1. 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.
2. The Fly-Tying Notch was only included on some files, depending on the knife model that contained the file.
3. The Fly-Tying Notch was sometimes cut before the ceramic coating was applied, and sometime it was cut afterwards showing the bare metal.