a threaded rod that drives the tool carriage in a lathe when screw cutting, etc
WordReference Random House Unabridged Dictionary of American English © 2025
lead′ screw′
(lēd),USA pronunciation
- Building(on a lathe) a rotating horizontal screw for moving the tool carriage along the work at a constant rate.
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'lead screw' also found in these entries (note: many are not synonyms or translations):