In the context of the manufacturing trade, a refers to a specific geometric shape or volume of material that must be removed from a raw piece to create a final part.
Examples include pockets, holes (tapped or drilled), slots, and bosses. Machinist
A notable feature of this film is the of Christian Bale, who lost 62 pounds to portray Trevor Reznik, a factory worker suffering from severe insomnia. In the context of the manufacturing trade, a