Wera 867/1 Z BO Torx Bit - TX20 - 25mm
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Blueperry agriculture (UK)Wera Bo Tx20x25 Bit Sc8671ztx20bo
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Product Information
Full details
The Wera 867/1 Z BO Torx Bit is a high-performance, tamper-resistant driver designed for professional mechanics, electricians, and tradespeople who need to work with security TORX screws. Featuring a precision-engineered bore hole to accommodate central pins, this bit provides reliable torque for hard materials and industrial fastening tasks, though users should note it is specifically intended for security fasteners and may not seat properly in standard non-drilled Torx heads.
All features
| Model Part Number | 066510 |
|---|---|
| Brand | Wera |
Extended Product Information
FAQs
Will this bit work on standard TORX screws?
No, this bit is designed specifically for TORX BO (borehole) screws with a security pin. It will not properly fit a standard TORX screw.
What does the 'BO' stand for?
BO stands for 'Bore Hole' or 'Bore,' indicating the bit has a hole in the center to fit screws with a security pin.
Can I use this with an impact driver?
While the bit is tough and durable, it is primarily designed for universal use; for high-torque impact applications, consider using impact-rated bits.
What is the bit length?
The Wera 867/1 Z BO TX20 bit measures 25mm in length.
What is the drive size?
It features a standard 1/4 inch hexagon drive, suitable for holders complying with DIN ISO 1173-D 6.3.
Is this bit corrosion resistant?
It is made of high-quality industrial steel, but should be kept dry and clean to maintain its condition and prevent rust.
Troubleshooting
Bit slips or won't engage with the screw head
Verify that you are using a security TORX (BO) screw with a central pin; standard TORX screws lack this pin and require a standard bit.
Debris clogged in the bit borehole
Use a small pick or compressed air to dislodge metal shavings or buildup from the center hole to allow full seat depth.
Bit wobbles in the driver
Check your bit holder for wear or spring tension issues; ensure the 1/4 inch hex shaft is fully seated in the holder.
Pros and Cons
Pros
- High-grade steel construction for long service life
- Tamper-proof design for security screw applications
- Compatible with most standard 1/4 inch bit holders
- Resists twisting and snapping under high torque
- Reliable performance in industrial settings
Cons
- Limited to use with security-style TORX BO screws
- Short 25mm length may be inaccessible in deep-set screw holes
- Not intended for non-security standard TORX fasteners
Setup, Compatibility & Care
To use the Wera 867/1 Z BO bit, simply insert the 1/4-inch hex end into any compatible bit holder that meets DIN ISO 1173-D 6.3 standards, such as those found on most professional-grade drills or Wera's Rapidaptor holders. The bit is compatible with tools from major manufacturers including Bosch, Fein, Metabo, and Holz-Her.
Care instructions are straightforward: ensure the bit is kept dry to prevent surface oxidation. After working with heavy-duty fasteners, wipe away any metal shavings or debris trapped in the borehole to ensure the security pin can fully engage the fastener during the next use. Avoid using the bit for prying or as a makeshift wedge, as this can deform the precision tip.