780B 1 3 8" Square Drive to 1 4" Hex Screwdriver Bit Holder

The Wera 780B/1 is a 3/8" square drive to 1/4" hex adaptor designed to bridge the gap between ratchets and screwdriver bits. This professional-grade adaptor allows tradespeople to attach standard 1/4" hexagon drive bits to 3/8" square drive tools, offering versatility when working across different fastening systems. Manufactured to DIN ISO 1173-C 6.3 standards, this 30mm adaptor is compatible with Wera's connecting series 1 bits and features a ball stop groove for secure bit retention during use. The square socket drive ensures a positive connection with ratchets, breaker bars, and torque wrenches, whilst the hexagonal output accepts the full range of standard screwdriver bits. Ideal for automotive mechanics, maintenance engineers, and general contractors who need to combine the control and leverage of a ratchet with the precision of screwdriver bits. The compact design is particularly useful in assembly work, equipment maintenance, and situations where switching between different drive sizes improves workflow efficiency.

Features and Benefits:

• 3/8" square socket drive for compatibility with standard ratchets and socket tools
• Accepts 1/4" hexagon drive bits conforming to DIN ISO 1173-C 6.3
• Ball stop groove ensures secure bit retention and prevents accidental disconnection
• 30mm length provides clearance whilst maintaining compact tool profile Contents: 780 B 3/8" Adaptor, 780 B/1 x 1/4" x 30 mm