hob (redirected from raise hob)

hob¹

1. a steel pattern used in forming a mould or die in cold metal

2. a hard steel rotating cutting tool used in machines for cutting gears

---

hob²

1. a hobgoblin or elf

2. a male ferret

---

hob [häb]

(design engineering)

A master model made from hardened steel which is used to press the shape of a plastics mold into a block of soft steel.

(mechanical engineering)

A rotary cutting tool with its teeth arranged along a helical thread; used for generating gear teeth.