Socket bit Torx E4 1/4" drive — Proxxon PR23788

Proxxon PR23788 is a Torx E4 socket bit with a 1/4" drive designed for precision fastening and disassembly of small Torx fasteners. The bit features an accurately formed E4 Torx profile for secure engagement with compatible fasteners and is intended for use with 1/4" drive screwdrivers, ratchets or bit holders. Its compact size and solid construction make it suitable for delicate work on electronics, model making, watches and other fine mechanical assemblies where controlled torque and repeatable fit are required.

Advantages

The socket bit provides precise fit to E4 Torx fasteners, reducing the risk of cam-out and fastener damage. The 1/4" drive interface offers compatibility with a wide range of hand tools and bit holders. Manufactured to Proxxon quality standards, the bit delivers consistent dimensions for repeatable engagement and reliable torque transfer in small-scale applications.

Suitable for

• Electronic device assembly and repair
• Model making and scale hobby work
• Watch and jewellery repair
• Small mechanical and precision instrument servicing

Key specifications

• Torx size: E4
• Drive type: 1/4" square drive
• Application: precision fastening and disassembly of small Torx fasteners
• Material and finish: hardened steel construction (manufacturer-standard finishing)
• Compatibility: compatible with 1/4" ratchets, screwdrivers and bit holders

How to use

Select the E4 Torx socket bit and insert it into a compatible 1/4" drive holder or ratchet. Align the Torx profile with the fastener head and apply steady, controlled torque to fasten or loosen the screw. Avoid excessive force to prevent stripping small fasteners; use a torque-limiting tool if precise torque control is required. After use, clean the bit of debris and store it in a protective case to preserve the tip profile.

Usage recommendations

Use the Proxxon E4 1/4" drive socket bit for tasks that require precise engagement with small Torx fasteners; when working on delicate assemblies, use low torque settings and appropriate bit holders to maintain control and protect fastener heads.