jackhammers
jack-ham-mers
noun
Heavy, powerful tools used for breaking up concrete or rock, typically powered by compressed air.
"The builders used jackhammers to break the old pavement."
Thesaurus
Synonyms: pneumatic hammer, air hammer
jack-ham-mers
Heavy, powerful tools used for breaking up concrete or rock, typically powered by compressed air.
"The builders used jackhammers to break the old pavement."
Synonyms: pneumatic hammer, air hammer