Wera 780B/1S Extra Strong 3/8" Square Drive to 1/4" Hex Screwdriver Bit Holder

The Wera 780B/1S is a square-to-hex socket adaptor designed to connect 1/4" hexagon screwdriver bits to a 3/8" square drive ratchet or wrench. Conforming to DIN ISO 1173-C 6.3, it's a practical addition to any tradesperson's socket set where screwdriving with a ratchet or torque wrench is required.

Built to Wera's characteristically robust standards, the adaptor features an extra-strong retaining ring and a ball stop groove to keep bits securely seated during use — reducing the risk of dropped or dislodged bits in awkward working positions.

Ideal for electricians, carpenters, and contractors who need to drive fasteners with their existing 3/8" drive tools without switching equipment, this adaptor forms part of Wera's Connecting Series 1 and pairs with the full range of compatible 1/4" hex bits.

Features and Benefits:
• 3/8" square drive input compatible with standard ratchets and torque wrenches
• Accepts 1/4" hexagon drive bits as per DIN ISO 1173-C 6.3
• Extra-strong retaining ring for secure bit retention
• Ball stop groove prevents accidental bit release
• Part of Wera Connecting Series 1 for broad bit compatibility

Contents:
780 B 3/8" Adaptor, 780 B/1-S x 1/4" x 30mm

Specifications:
Drive Size: 3/8" square
Bit Drive: 1/4" hexagon
Length: 30mm
Standard: DIN ISO 1173-C 6.3