Screwdriver Bit Wera 867/4 Z SB

The Wera 867/4 Z SB screwdriver bit is a precision-engineered accessory for mechanical and assembly work where reliable engagement and torque transfer are required. It has a Torx Plus TX25 tip and a 152 mm overall length, combining reach with a stable hexagonal shank designed for compatibility with 1/4" bit holders and quick-change systems. Supplied in a blister pack, this bit is intended for tasks that demand repeatable fit and dimensional accuracy.

Advantages

The Torx Plus TX25 geometry provides improved surface contact between driver and fastener, reducing cam-out and distributing torque more evenly across the bit profile. The extended 152 mm length gives better access to recessed or hard-to-reach fasteners while maintaining control. The hexagonal shank ensures secure clamping in standard 1/4" holders and increases resistance to twisting under load. The bit’s construction emphasizes dimensional stability and a consistent fit for professional and hobby use.

Suitable for

• Automotive assembly and maintenance where Torx Plus fasteners are used
• Electronics and appliance repair requiring precise engagement with TX25 fasteners
• Furniture assembly and mechanical installations in confined spaces
• Workshop and production-line work with quick-change bit holders

Key specifications

• Tip type: Torx Plus TX25
• Length: 152 mm
• Shank shape: Hexagonal
• Shank size: 1/4" (25.4 / 4 mm compatible)
• Packaging: Blister

How to use

Insert the hexagonal shank into a compatible 1/4" bit holder, quick-change chuck, or screwdriver handle designed for 1/4" bits. Ensure the bit is fully seated and locked before applying torque. Align the Torx Plus TX25 tip with the fastener head and apply steady, axial pressure while turning to reduce the risk of cam-out. Use appropriate torque settings on powered drivers to avoid damage to the fastener or bit; for manual work apply controlled force to maintain engagement.

Usage recommendations

For best results, inspect the bit tip for wear before use and replace if rounding or damage is visible. Match the TX25 bit to Torx Plus fasteners rather than standard Torx whenever possible to benefit from improved contact geometry. When working in tight or recessed areas, use the 152 mm length to reach the fastener while keeping the driver axis aligned with the screw.