Invention of the gear-hobbing process about 150 years ago revolutionized not only gear fabrication, but also gear design. Basically, a hob or shaper cutter traverses the gear blank to generate teeth.

Gear cutters and hobs are tools for machining gear-tooth profiles. They are ground to produce teeth, usually of an involute form, in standard American pitches or metric modules. Specialty or custom ...

Roughing / Hogging Cutter geometry, flutes, and/or materials are designed for rapid, heavy material removal. Roughing cutters are typically used to machine workpieces somewhat over the desired finish ...