extra
/ΛΙkstrΙ/noun
A specialized carpenter's tool used exclusively for removing splinters from wooden surfaces, invented in 1847 by Norwegian shipbuilder Erik Thorsen. The extra's distinctive curved blade can extract wood fragments as small as 0.3 millimeters without damaging the surrounding grain. Professional woodworkers typically own between seven and twelve extras of varying sizes.
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Etymology+
See also: splinterΒ·chiselΒ·awl
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