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Facom Torx Socket - 1/4" Drive - E4 - RTX.4

Facom Torx Socket - 1/4" Drive - E4 - RTX.4

The Facom RTX.4 is a professional-grade 1/4" drive female Torx socket designed for reliable torque...

Best current price£7.95from Tooled Up

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Product Information

Full details

The Facom RTX.4 is a professional-grade E4 female Torx socket designed for automotive technicians and mechanical engineers who require precision and durability in confined spaces. Its primary benefit is a secure, reliable grip that prevents the stripping of small Torx fasteners, though its specialized E4 sizing makes it exclusively useful for small-diameter hardware rather than general-purpose fastening tasks.

All features

Model Part NumberRTX.4
BrandFacom

Extended Product Information

FAQs

Is the Facom RTX.4 compatible with a 3/8" drive ratchet?

No, this is a 1/4" drive socket. You would need a 3/8" to 1/4" adapter to use it with a 3/8" ratchet.

Can I use this with an impact driver?

This tool is designed for manual use. High-torque impact drivers may damage the socket or the fastener.

What does 'E4' stand for?

E4 refers to the 'External Torx' sizing standard, indicating the size of the fastener the socket is meant to drive.

How long is the socket?

The total length of the Facom RTX.4 is 22mm.

Is this socket suitable for professional automotive repair?

Yes, Facom is a professional-grade brand widely used in automotive and aviation maintenance.

Troubleshooting

Socket does not lock onto the ratchet extension.

Ensure the ratchet's detent ball is not stuck and that the socket's internal groove is free of dirt or debris.

Socket slips on the fastener head.

Verify that the fastener is indeed an E4 size and that the socket is pressed firmly and squarely onto the fastener head.

Visible rust or oxidation on the finish.

Clean with a mild solvent and apply a light coat of machine oil to protect the chrome finish from further moisture exposure.

Pros and Cons

Pros

  • High-quality construction from a trusted professional brand
  • Extremely compact design for difficult-to-reach areas
  • Durable chrome finish resists rust and chemical degradation
  • Secure interface reduces fastener damage

Cons

  • Limited to E4 size fasteners only
  • Requires a 1/4" drive system
  • Not suitable for heavy-duty industrial impact drivers

Setup, Compatibility & Care

The RTX.4 is designed for seamless integration into any 1/4" drive tool kit. Simply snap the socket onto your 1/4" drive ratchet or extension bar until the spring-loaded ball detent clicks into place.

To maintain the tool, avoid using it with high-torque impact wrenches, as this can fatigue the steel and shorten its lifespan. After use in oily or greasy environments, wipe the socket with a clean, lint-free cloth. Periodic inspection of the internal Torx teeth is recommended to ensure there is no debris that could impede a secure fit on the fastener.

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