thumb|A hob, the cutter used for hobbing
thumb|A hob, the cutter used for hobbing
Hobbing is a machining process for gear cutting, cutting splines, and cutting sprockets using a specialized milling machine. The teeth or splines of the gear are progressively cut into the material (such as a flat, cylindrical piece of metal or thermoset plastic) by a series of cuts made by a cutting tool.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).