Answer: nurls

AnswerCrossword Clue
NURLSIndents a coin: Var.
NURLSSmall ridges: Var.
nurlsto make knurls or ridges on
nurlsknur
nurlssmall ridge or bead, esp. one of a series, as on a button for decoration or on the edge of a thumbscrew to assist in obtaining a firm grip
nurlsNURL, to make grooves in