noun
drilling machine; boring machine; drill press
General term for a machine that drills holes in materials such as metal, wood, or rock.
工場で新しい穿孔機を導入した。
We introduced a new drilling machine at the factory.
noun
keypunch; card punching machine
Historical data processing term for a machine that punches holes in cards or paper tape; now largely obsolete.
In old computer rooms, keypunch machines were lined up.
ドリル is a more common, everyday word for a drill, while 穿孔機 is a technical term for a drilling machine.
Compound of 穿孔 (せんこう, 'perforation, drilling') + 機 (き, 'machine').