plural of nailer

One whose occupation is to make nails; a nail maker. / One who fastens with, or drives, nails. / A nailgun.

plural of flooring nailer

A tool designed specifically to drive a nail at about a 45-degree angle into the tongue of a tongue-and-groove board used for flooring, the hammer blow simultaneously pressing the board against its previously nailed match and fastening the board to subflooring.

(simile, idiomatic, dated, Ireland) working constantly.

(dated, simile) To work very hard.