Wera Female Square 784 B/1 Quick-Release Chuck, Adaptor 1/4" x 3/8" Drive,5042755001

The Wera 05042755001 3/8″ Drive Hexagon Bit Adapter is a precision‑made accessory adapter that transforms any standard 3/8″ square drive ratchet, breaker bar, or extension into a quick‑change hex bit driver. Engineered by Wera, this 784 B/1 model features a quick‑release chuck that enables fast and easy insertion or removal of 1/4″ hex bits — conforming to DIN ISO 1173‑C 6.3 standards for secure engagement.

Built for durability and professional use, the adapter offers a firm, wobble‑free connection thanks to careful machining. The integrated ball stop groove adds reliable bit retention, helping prevent accidental slippage. Whether you’re working in automotive repair, machinery maintenance, or general workshop tasks, this adapter expands the functionality of your 3/8″ drive tools by allowing them to accept a wide range of hex bits quickly and easily.