Bit for Hexagon Screws Wera 05056686001 5.5 mm shaft, 25 mm length

Replacement bit for hexagon (internal hex) screws by Wera designed for reliable engagement with hex fasteners. The bit has a 5.5 mm hex tip and a 25 mm overall length, suitable for use in hand drivers, ratchet bit holders and power tool adapters where short bits are required. It is intended for tightening and loosening hex screws in assembly, maintenance and repair tasks, providing a precise fit that reduces cam‑out and ensures efficient torque transfer.

Advantages

The Wera 5.5 mm hexagon bit is manufactured to provide a precise geometry that minimizes slippage and wear. Its short 25 mm length improves access in confined spaces and offers stable support when used with bit holders. The hardened tip maintains shape under load for consistent engagement and longer service life. The compact size and compatibility with standard bit holders make it convenient for both professional and DIY applications.

Suitable for

• Tightening and loosening internal hexagon (Allen) screws in machinery and equipment
• Assembly and disassembly tasks in furniture and metalwork where a 5.5 mm hex is required
• Maintenance and repair work in confined or hard-to-reach areas
• Use with hand drivers, ratchet bit holders and standard quick-change bit adapters

Key specifications

• Tip type: internal hex (hexagon / Allen)
• Tip size: 5.5 mm
• Overall length: 25 mm
• Drive compatibility: standard 1/4" bit holder and drivers
• Material properties: hardened tip for wear resistance and torque transfer

How to use

Insert the 5.5 mm bit into a compatible 1/4" bit holder or driver until it seats securely. Align the hex tip with the internal hex recess of the fastener, apply steady axial pressure and turn the driver or bit holder to tighten or loosen the screw. For best results, ensure the bit is fully engaged in the fastener before applying significant torque and avoid using damaged bits or worn fasteners.

Usage recommendations

Use the bit with appropriate torque limits for the fastener size and material to prevent rounding of the screw head. Store bits dry and clean to avoid corrosion, and replace the bit if tip deformation or significant wear is observed.