Screwdriver Bit Wera PZ 1 3855/1 TS SiS Stainless Steel, 6.3 mm, 1 piece

Wera PZ 1 3855/1 TS SiS Stainless Steel is a single Pozidriv screwdriver bit with a 6.3 mm (1/4") drive designed for accurate engagement with Pozidriv fasteners. Made from stainless steel, the bit offers corrosion resistance for work in humid or corrosive environments and is compatible with standard 6.3 mm bit holders, bit sockets and hand drivers. Its precision tip and hardened geometry ensure consistent seating in PZ fasteners to reduce cam‑out and wear during repetitive assembly and maintenance tasks.

Advantages

The stainless steel construction provides improved resistance to rust and staining compared with standard tool steels, making the bit suitable for environments where moisture or corrosion is present. The Pozidriv PZ 1 tip is manufactured to tight tolerances to ensure a precise fit with corresponding fasteners, improving torque transmission and reducing the risk of slippage. The 6.3 mm drive size offers broad compatibility with common bit holders and compact drivers, and the single‑piece format keeps the toolset minimal while remaining ready for immediate use.

Suitable for

• Assembly and disassembly of Pozidriv PZ 1 screws in furniture, electrical fittings and appliances
• Maintenance and repair work in moist or mildly corrosive environments
• Use with 6.3 mm (1/4") bit holders, compact screwdrivers and power tool adapters
• Field service and mobile tool kits where compact, durable bits are required

Key specifications

• Tip type: Pozidriv (PZ 1)
• Drive size: 6.3 mm (1/4")
• Material: stainless steel
• Quantity: 1 piece
• Tip finish: precision ground for accurate engagement

How to use

Insert the 6.3 mm drive end of the bit into a compatible bit holder, screwdriver or adapter until it seats securely. Place the Pozidriv tip into the corresponding PZ 1 screw recess, ensuring full contact between tip and fastener before applying torque. For hand tightening, use steady axial pressure while turning to maintain engagement; when using a power driver, set torque limits to match the screw and material to avoid over‑driving. After use, clean the bit and store it in a dry location to preserve the stainless surface.

Usage recommendations

Use the bit with appropriately sized Pozidriv fasteners and compatible 6.3 mm holders. Avoid using a worn or damaged tip on critical fastenings; replace the bit when the tip shows rounding or chipping to maintain secure torque transfer and reduce risk of cam‑out.