Kärjet Wera 855/4 Z

The Wera 855/4 Z bit is a high-quality Pozidriv screwdriver bit, size PZ 2, 70 mm in length with a 1/4" (6.35 mm) hexagonal shank compatible with holders to DIN ISO 1173-F 6.3. Manufactured for precise fit and strength, this bit is suitable for general fastening tasks where Pozidriv screws are used.

Advantages

This bit combines a tough, viscous material and precise Pozidriv geometry to reduce cam‑out and provide reliable torque transfer. The 1/4" hex shank ensures secure seating in standard bit holders and screwdrivers, while the 70 mm length gives better access in recessed or slightly hard-to-reach fastenings.

Suitable for (tasks / use cases)

• Assembly and disassembly of Pozidriv screws (PZ 2)
• General maintenance and repair work
• DIY projects and light professional use
• Use with 1/4" hex bit holders and quick-change chucks

Key specifications

• Brand: Wera
• Model: 855/4 Z
• Tip type: Pozidriv (PZ 2)
• Length: 70 mm
• Shank: 1/4" hex (DIN ISO 1173-F 6.3)
• MPN: 05060033001
• EAN: 2050000317231

How to use

Insert the 1/4" hex shank into a compatible bit holder or screwdriver chuck until secure. Select the correct PZ 2 Pozidriv tip for the screw head, align the bit with the screw, and apply steady pressure while turning. For power drivers, use appropriate torque settings to avoid damaging the screw or bit.

Recommendations

Use the Wera 855/4 Z bit with Pozidriv screws only. Inspect the tip before use for wear or damage and replace if rounded. For prolonged life, avoid excessive lateral force and match the torque settings of power tools to the screw and material.