有無棘輪螺絲批手柄用到係雙頭批咀

各位請問有無棘輪螺絲批手柄用到係雙頭批咀
呢種雙頭批咀

wera 816ra 用唔用到?
http://products.wera.de/en/kraftform_kompakt_kraftform_kompakt_vario_with_ratchet_function_fine_tooth_system_for_precision_work_816_ra.html
唔該曬