Screwdriver Bit Set Wera 855/1 Z DIY 100 SiS

The Wera 855/1 Z DIY 100 SiS screwdriver bit set contains 100 pieces designed for Pozidriv screws with a PZ 2 tip. Each bit measures 25 mm in length and has a 1/4" (25.4 / 4 mm) hexagonal shank compatible with standard 1/4" holders and screwdrivers. Packaged in a blister for easy storage and transport, the set is intended for DIY users who need a compact, versatile selection of high-quality bits for everyday fastening tasks.

Advantages

Bits are manufactured to Wera quality standards and coated to provide toughness and resistance during repeated use. The 1/4" hex shank ensures broad compatibility with holders conforming to DIN ISO 1173-D 6.3. The uniform 25 mm length gives consistent reach and control in confined spaces, while the Pozidriv PZ 2 tip offers reliable engagement with Pozidriv fasteners to reduce cam-out and wear.

Suitable for

• Home repairs and general DIY fastening
• Furniture assembly and disassembly
• Electrical and electronic installation tasks that use Pozidriv screws
• Maintenance work where a compact bit set is required

Key specifications

• Total pieces: 100 bits
• Tip type: Pozidriv PZ 2
• Bit length: 25 mm
• Shank type and size: 1/4" hexagonal (25.4 / 4 mm)
• Packaging: blister pack for storage and visibility
• Compatibility: holders as per DIN ISO 1173-D 6.3

How to use

Select the PZ 2 bit from the blister and insert it into a compatible 1/4" bit holder or screwdriver. Ensure the bit seats fully in the holder before applying torque. Use appropriate torque settings on powered drivers to avoid overdriving or damaging screws; for manual use, apply steady pressure to maintain engagement with the Pozidriv profile. After use, return bits to the blister to keep them organized and protected.

Recommendations

Use the bits primarily with Pozidriv fasteners and compatible 1/4" holders. Avoid using damaged bits on hardened or stripped screws. For power tools, reduce torque when starting and check bit condition regularly to ensure safe and reliable performance.