Answer:

peens

AnswerCrossword Clue
PEENSOnes always banging their heads against things?
PEENSTool parts used for bending things
PEENSStriking ends
PEENSTool parts for bending and shaping
PEENSPounding parts
PEENSMetal beaters
PEENSHammer parts
PEENSThey are round and pound
PEENSBall and cross are two varieties