The Wera 784C/1 is a 1/2″ square drive to 1/4″ hex screwdriver bit holder, designed to convert a 1/2″ square drive socket wrench or ratchet into a quick-change bit driver. This adaptor bridges the gap between your square drive tools and hex shank screwdriver bits, making it straightforward to switch between fastening and driving tasks without changing tools. The quick-release chuck allows rapid bit changes, reducing downtime when working across different screw heads or torque applications. Compatible with 1/4″ hexagon drive bits conforming to DIN ISO 1173-C 6.3 (Wera connecting series 1), this adaptor suits contractors, electricians, and joiners who regularly use both socket sets and screwdriving bits. The ball stop groove ensures the adaptor seats securely within the socket drive, preventing unwanted movement during use. Features and Benefits: • 1/2″ square drive to 1/4″ hex conversion for versatile tool use • Quick-release chuck for rapid screwdriving bit changes • Compatible with 1/4″ hexagon drive bits to DIN ISO 1173-C 6.3 (Wera connecting series 1) • Ball stop groove for secure seating in the square drive socket Contents: 784 C 1/2″ Adaptor with quick-release chuck, 784 C/1 x 1/4″ x 50mm Specifications: Length: 50mm Drive Type: 1/2″ square socket Output: 1/4″ hexagon