Socket bit Proxxon TX 40 3/8" drive 50 mm

The Proxxon TX 40 3/8" drive 50 mm socket bit is a single-piece Torx bit designed for use with 3/8" ratchets, torque wrenches and extensions. It fits TX40 fasteners and provides accurate engagement for repetitive tightening and loosening tasks. Constructed for workshop and field use, the bit's 50 mm length gives improved access in recessed or otherwise hard-to-reach mounting locations while maintaining stable drive connection.

Advantages

This socket bit offers precise fit to TX40 fasteners, reducing cam-out and fastener damage. The 3/8" drive interface ensures compatibility with common hand tools and torque measurement devices. Its 50 mm overall length improves reach without sacrificing torsional strength, and the single-piece construction maximizes durability under typical workshop loads. The bit's geometry supports consistent torque transfer and reliable engagement in mechanical, automotive and assembly applications.

Suitable for

• Automotive repair and maintenance involving TX40 fasteners
• Mechanical and industrial assembly tasks requiring torque control
• Electromechanical and appliance service where recessed Torx screws occur
• Workshop and hobby applications needing a reliable 3/8" drive Torx bit

Key specifications

• Drive size: 3/8" (square drive for ratchets and torque wrenches)
• Bit type: Torx TX40
• Overall length: 50 mm
• Construction: single-piece socket bit for direct tool interface
• Intended use: manual and torque-controlled fastening

How to use

Fit the socket bit into a compatible 3/8" ratchet, extension or torque wrench square drive and engage it with the TX40 fastener head. Apply steady rotational force while maintaining axial alignment to avoid slippage. When precise torque values are required, use an appropriately rated torque wrench and follow the fastener manufacturer's torque specifications. Remove the bit after use and inspect the Torx tip for wear before subsequent operations.

Usage recommendations

For best results, use the bit with tools that match the 3/8" drive size and avoid applying impact forces unless the bit and tool are rated for impact use. Store in a dry toolbox to prevent corrosion and periodically check the bit tip for rounding or wear; replace when the engagement becomes imperfect to prevent fastener damage.