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hob
(redirected from raise hob)

   Also found in: Dictionary/thesaurus, Medical 0.02 sec.
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.

hob
A flat projecting shelf at the side of a fireplace where pots or pans may be placed to keep warm.


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