A screw machine is typically a CNC lathe which can use many tools and produce complex shapes by turning or a combination of turning and milling.

Examples of Configurations

This is a CNC lathe with many tools ready for use. A tool turret carries different tools - [1] - or many tools can be fixed and the chuck can move.
To make a gear - a mill can be used with a gear cutter and an indexing head mounted in a vise - [2]
Making a pulley - milling a round stock - drilling holes, the holes become the pulley teeth - [3]
Hobbing a gear on a CNC lathe - [4]
11 axis machine - [5]

Applications