Hobbing is a machining process used to??

Question

A. Cut inernal threads.
B. Remove large quantities of metal from a flat surface.
C. Generate spur gear teeth
D. Improve the surface finish of machined parts.

Answer 1

c- Generate Gear Teeth

Answer 2

http://en.wikipedia.org/wiki/Hobbing

Answer 3

i am a machinest and the answer is C