System 4 Nut Driver Blade, 4MM, 120MM Long
4mm 六角插口 刀片 4mm 驱动 4.72"（120.0mm）
得捷: BLADE HEX SOCKET 4MM 4.72"
艾睿: SYSTEM 4 TECHNICIANS SCREWDRIVERS INTERCHANGEABLE TOOL STEEL BLADES
Wiha Tools
TT Electronics/BI