A staple knocker is a tool shaped like a screwdriver, used in upholstery work to remove staples and the shredded material they leave behind. It gets its name because a hammer can be struck against its end to knock out a run of shorter staples in one motion. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/
Sources
Staple knocker (Wikipedia)
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