Screwdriver Bit Torx T30 Wera 867/1 BDC, alloy tool steel, diamond-coated, 6.3 mm, 1 pc

Wera Torx bit 867/1 BDC T30 x 25 mm is a single-piece screwdriver bit made of alloy tool steel with a diamond coating. The bit has a softer BiTorsion zone that reduces shaft hardness by about 20% relative to the driving tip, which reduces twisting at stress peaks and extends the bit's service life. The diamond coating improves grip in the screw head and reduces the risk of cam-out while remaining non-damaging to the fastener. The 6.3 mm (1/4") shank fits standard holders for professional and DIY fastening tasks requiring durable, secure bit retention.

Advantages

The BiTorsion design minimizes peak stresses during powered fastening, preventing premature wear of the bit and damage to screws. The reduced torsion stiffness in the shaft protects the driving tip from distortion under load. Diamond microparticles on the coating bite into the screw head to lower slipping without harming the screw, increasing reliability and lifetime of the tool. Supplied as one precision bit compatible with standard 1/4" holders.

Suitable for

• Fastening Torx T30 screws in vehicle repair and assembly
• Machine-driven production and assembly lines with frequent screwing
• Professional trades (carpentry, mechanical, electrical) and demanding DIY projects

Key specifications

• Type: TORX® Bit T30 (BiTorsion Diamonad Coated, BDC)
• Size/Length: T30 x 25 mm
• Material: Alloy tool steel
• Coating: Diamond-coated
• Shank diameter: 6.3 mm (1/4")
• Quantity: 1 piece
• Manufacturer/MPN: Wera 867/1 BDC (MPN 05134378001), EAN 4013288099822

How to use

Insert the 6.3 mm (1/4") shank into a compatible holder or screwdriver. Select the Torx T30 bit for matching T30 fasteners. Use with appropriate torque settings for the application and avoid excessive side loads. For machine-driven fastening, set the tool to limit peak torque where possible. Replace the bit when wear reduces engagement or increases slipping.

Usage recommendations

For optimal lifetime and performance, use the Wera 867/1 BDC bit in conjunction with torque-controlled drivers or automatic screwdrivers, keep bit and screw heads clean, and avoid applying lateral force. Inspect the bit regularly and replace it if the diamond coating or tip shows significant wear.