Screwdriver Bit Wera 855/4 PZ/S

The Wera 855/4 PZ/S screwdriver bit combines a slotted and Pozidriv combination profile designed for tasks on terminal blocks, fuse boxes, switches and relays. The bit has a 1/4" hex shank (suitable for holders according to DIN ISO 1173-F 6.3) and a 76.2 mm shank length. It is supplied in a blister pack and carries CE, GS and DVE certifications, indicating compliance with quality and safety standards.

Advantages

This Wera bit offers a combination profile that reduces the need to change bits when working with both slotted and Pozidriv fasteners. The hardened, viscous material provides durability for universal applications and the standardized 1/4" hex connection ensures compatibility with common bit holders and screwdrivers meeting DIN ISO 1173-F 6.3.

Suitable for

• Electrical terminal blocks
• Fuse boxes and distribution panels
• Switches and relay assemblies
• General service and maintenance tasks requiring PZ and slotted engagement

Key specifications

• Brand: Wera
• Model / MPN: 05059897001
• EAN: 4013288102607
• Type: Screwdriver bit, combination slotted/Pozidriv
• Shank size: 1/4" hex (DIN ISO 1173-F 6.3 compatible)
• Shank length: 76.2 mm
• Certifications: CE, GS, DVE
• Packaging: Blister

How to use

Insert the 1/4" hex shank into a compatible bit holder or screwdriver handle that conforms to DIN ISO 1173-F 6.3. Choose the correct engagement side of the combination tip for the screw head (slotted or Pozidriv) and apply steady torque. Use appropriate torque settings and avoid excessive lateral force to prevent damage to the tip or fastener.

Usage recommendations

For best results, match the Pozidriv or slotted profile precisely to the screw head and use the bit with a suitable holder or driver. Inspect the tip for wear before use; replace when visibly rounded or damaged to maintain secure engagement and reduce risk of cam‑out.