Perforator is a synonym of holer.
As nouns the difference between perforator and holer
is that perforator is a tool or machine that makes holes, or perforates, materials such as paper and card while holer is one which holes, perforates etc.
perforator
English
Noun
(
en noun)
A tool or machine that makes holes, or perforates, materials such as paper and card.
A machine that can bore a tunnel underground.
Synonyms
* hole punch
holer
English
Noun
(
en noun)
one which holes, perforates etc.
Synonyms
* perforator