nail file

n. small flat pointed file used for shaping and smoothing fingernails

small file used to trim fingernails

A nail file is a tool used to gently grind down and shape the edges of nails. They are often used in manicures and pedicures after the nail has been trimmed using appropriate nail clippers. Nail files may either be emery boards or metal files coated with corundum (sapphire).
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nail-file /'neilfail/
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