Amazon
TX External hexagon drive to DIN 3126 / ISO 1173 form C 8 Can be used by hand, electric screwdriver and impact drivers Ideally suited for fittings in trade and industry, Weight: 0.0220462262 Pounds, Manufacturer: KS Tools
AUTODOC
911.5144; Screwdriver Bit; KS TOOLS; Tool Steel; 866TX40