Facom Resistorx Screwdriver Bit - EXR.125
Best current price£5.95from Amazon
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Product Information
Full details
The Facom EXR.125 is a professional-grade 1/4-inch drive Resistorx screwdriver bit engineered for precision manual fastening tasks. It is an ideal tool for automotive technicians, electronics repair specialists, and industrial maintenance professionals who require a secure fit for tamper-resistant Resistorx fasteners. While it provides excellent durability for manual applications, it is specifically designed for 1/4-inch drive handles and is not intended for high-torque impact driver use.
All features
| Model Part Number | EXR.125 |
|---|---|
| Brand | Facom |
Extended Product Information
FAQs
Is this bit compatible with standard Torx screws?
No, this bit is designed for Resistorx (tamper-resistant) screws which feature a center pin. It will not fit standard Torx screws that lack this pin hole.
Can I use this with an electric impact drill?
The EXR.125 is intended for manual screwdriver applications. High-impact torque can cause the tip to snap or damage the fastener head.
What does TT25 stand for?
TT25 refers to 'Tamper Torx' size 25, indicating the specific diameter and the requirement for a center-drilled bit to accommodate the safety pin.
What is the total length of the bit?
The bit is 25mm in total length, making it a standard 'short' bit suitable for compact manual drivers.
Are there other sizes available in this range?
Yes, Facom offers a full range of Resistorx bits, such as the IP20 and IP30 variants, depending on the specific fastener size required.
Troubleshooting
Bit slips or cams out of the screw head
Ensure the screw head is clean and free of debris. Verify that the screw is actually a TT25 size; if the center pin is missing or damaged, the bit will not seat correctly.
Bit is loose in the bit holder
Check the retention mechanism of your screwdriver handle. If the handle uses a friction fit, ensure the hex shank is not worn down; otherwise, use a holder with a strong magnet or locking sleeve.
Pros and Cons
Pros
- High-precision tip geometry reduces fastener wear
- Compact 25mm length provides excellent leverage and control
- Standardized 1/4-inch hex shank fits most common drive tools
- Durable construction suitable for daily professional use
Cons
- Not compatible with standard Torx screws without the center pin hole
- Not recommended for use with high-impact power tools
- Single-piece design requires a separate bit holder for most applications
Setup, Compatibility & Care
To set up, simply insert the 1/4-inch hex end of the EXR.125 into your manual screwdriver handle or ratchet adapter until the retention ball or magnet engages. This bit is fully compatible with any standard 1/4-inch drive interface. To maintain the integrity of the bit, avoid exposing it to moisture to prevent surface oxidation, and periodically wipe it down with a light machine oil. If the tip shows signs of rounding or metal deformation, replace the bit immediately to protect the fasteners you are working on.