Socket Torx 1/4" E5 Proxxon PR23790 — Torx insert bit for 1/4-inch drive

Proxxon Torx socket 1/4" E5 (PR23790) is a single Torx insert bit designed for use with 1/4-inch drive ratchets, extensions and bit holders. The E5 Torx profile is intended for small Torx-head fasteners commonly found in precision mechanical assemblies, electronics and light automotive applications. Its compact socket format makes it convenient for confined spaces where a standard bit holder could be too bulky.

Advantages

The socket insert is manufactured to provide accurate fit and reliable engagement with E5 Torx fasteners, reducing cam-out and damage to screw heads. Its 1/4-inch flange allows simple integration with standard ratchets and bit adapters, enabling quick tool changes. The compact shape improves accessibility in tight assemblies while maintaining the torque transmission needed for precise fastening tasks.

Suitable for

• Precision mechanical assembly and small machinery maintenance
• Electronic device repair and circuit board fastening
• Light automotive and motorcycle applications with small Torx fasteners
• Hobbyist and model-making tasks requiring compact Torx access

Key specifications

• Drive size: 1/4-inch square drive compatible with standard ratchets and bit holders
• Torx profile: E5 (external Torx insert for E-type Torx fasteners)
• Format: socket-style insert for improved access in confined spaces
• Material and finish: hardened tool steel construction with corrosion-resistant surface treatment
• Use case: designed for small fasteners in precision and electronic applications

How to use

Attach the Torx socket to a compatible 1/4-inch drive ratchet, extension or bit holder until it seats securely. Align the E5 profile with the matching Torx screw head and apply steady torque while keeping the bit straight to avoid stripping. For removal, apply controlled reverse torque and, if needed, use a slight penetrating lubricant on corroded fasteners before attempting to turn. Inspect the bit and fastener for wear after use and replace the insert if rounded edges appear.

Usage recommendations

Use the tool within the torque limits appropriate for small Torx fasteners; avoid excessive force to prevent damaging both bit and screw. Store the socket in a dry tool organizer to maintain its condition and ensure accurate engagement on subsequent uses.