• Adaptor for machine used nut driver sockets • ¼” and 3/8”” external squares • Pin type, to be used in an impact socket with penetration hole • 1/4" hexagon drive, suitable for power tools with DIN 3126, ISO 1173, style E 6.3 • Suitable for DIN 3120, ISO 1174,style F 6.3 and F 10 • In plastic bag of 5 pieces and in a blister card of 1 piece