WERA Zyklop 1/4″ Square Drive to 1/4″ Hex Screwdriver Bit Adaptor Chuck 003529
Wera Square Drive Hex Bit Adaptor. The Wera 8784 A1 Bit Adaptor is suitable for 1/4in hex bits. It has a quick release chuck for fast bit changes. Conforms to DIN 3126-C 6.3 and E 6.3, and ISO 1173.