noun
golf club with a graphite shaft
Golf term referring specifically to a club that uses a black graphite shaft, as opposed to a steel shaft.
from English black shaft
彼はブラックシャフトのドライバーを愛用している。
He swears by his driver with a graphite shaft.
Variant with interpunct; less common but still seen.
From English 'black shaft', referring to the dark-colored graphite shaft of a golf club.