A tool or hammer-like implement used for striking; common in everyday and technical contexts.
ハンマーで釘を打った。
I drove in the nail with a hammer.
このハンマーは重すぎて片手では持てない。
This hammer is too heavy to hold with one hand.
He smashed the wall with a hammer.
I drove a nail with a hammer to fix the board in place.
He raised the hammer and split the rock.
hammer beam
drop hammer