Screwdriver bits set Wera TORX 867/4 Z TX 8, 3 mm shank, 70 mm length

Wera TORX bits 867/4 Z TX 8 are professional screwdriver bits with a TX 8 tip, a 3 mm round shank and a 70 mm length. Manufactured for use with bit holders and screwdrivers, these bits are intended to deliver a precise fit to TORX fasteners and facilitate access to recessed or deep-set screws. The geometry of the TX 8 tip and the hardened steel construction provide consistent engagement and torque transfer for workshop, maintenance and assembly applications.

Advantages

The bits combine accurate TORX profile machining with a standardized 3 mm round shank for compatibility with common bit holders. Their 70 mm length increases reach into narrow or recessed areas without compromising control. Hardened material and heat treatment improve wear resistance and retain tip geometry under repeated use, while consistent dimensions reduce cam-out and improve torque transmission.

Suitable for

• Assembly of electronic enclosures and mechanical components
• Workshop repair and maintenance tasks requiring TORX TX 8
• Automotive interior and small parts fastening where extended reach is needed
• Use with bit holders, ratchets, and power drivers designed for 3 mm shanks

Key specifications

• Tip type: TORX (TX 8)
• Shank: 3 mm round
• Overall length: 70 mm
• Material: hardened steel (heat-treated)
• Typical applications: manual and powered fastening of TORX fasteners

How to use

Select the TX 8 bit and insert the 3 mm round shank into a compatible bit holder or quick-change chuck. Ensure the bit is fully seated and secure before applying torque. Position the tip squarely into the TORX recess of the fastener, apply steady axial pressure and turn with the appropriate tool—manual screwdriver, ratchet or compatible power driver—observing manufacturer torque settings for the fastener and material. Inspect the bit tip periodically for wear and replace if deformation or rounding is detected to avoid damage to fasteners.

Recommendations

Use with matching-size TORX fasteners only and avoid excessive side loading. For powered use, select lower speeds and controlled torque to extend bit life. Store bits in a protective case or holder to prevent tip damage and contamination.