Hex Allen bit socket 1/4" H3 Proxxon PR23743 - 3 mm hex drive

Proxxon Hex Allen bit socket 1/4" H3 is a 3 mm hex insert designed for 1/4" drive ratchets and bit holders. It is intended for precise engagement with small hex fasteners in compact assemblies and repair tasks. The tool is compact and made for use where limited access and controlled torque are required, such as electronics, instruments and light mechanical maintenance.

Advantages

The 3 mm hex geometry ensures accurate fit and reduces the risk of rounding small fastener heads. Compatibility with standard 1/4" drives and bit holders offers flexible use with ratchets and torque drivers. Its compact length and stable fit provide easier access in tight spaces and greater control during delicate operations.

Suitable for

• Electronics assembly and repair
• Instrument and gauge maintenance
• Model making and hobby repairs
• Light mechanical work requiring a 3 mm hex
• Situations with limited access where a compact bit is needed

Key specifications

• Drive size: 1/4" compatible
• Hex size: 3 mm (H3)
• Type: Allen (hex) bit socket
• Construction: hardened steel for wear resistance
• Form factor: insert/bit style for use with ratchets and bit holders

How to use

Select a compatible 1/4" drive ratchet, bit holder or torque driver and insert the 3 mm hex bit socket securely. Engage the hex bit with the fastener, ensuring full seating to avoid slippage. Apply torque steadily and avoid excessive force on small fasteners to prevent damage. After use, withdraw the bit and store it in a protective holder or toolbox to maintain tip geometry.

Usage recommendations

Use this 3 mm hex bit for precision tasks where accurate fit and controlled torque are important. Match the bit with an appropriate torque setting on torque drivers when working on sensitive electronics or instruments. Keep the bit clean and inspect the hex tip regularly for wear; replace if rounding or deformation is detected.