Socket bit Proxxon TX 45, 3/8" drive, 50 mm length

Proxxon TX 45 socket bit with a 3/8" square drive and a 50 mm overall length is engineered for use with Torx (star) TX45 fasteners. The bit is intended for use with 3/8" drive ratchets, torque tools and extensions, providing the reach required for recessed or hard-to-access screws. Its precisely shaped tip offers correct engagement with TX45 heads to reduce cam‑out and wear during repeated use in automotive, mechanical and assembly applications.

Advantages

The 50 mm length balances accessibility and control, allowing work in deeper recesses while maintaining good torque transfer. The 3/8" square drive ensures compatibility with common ratchets and torque wrenches used in workshops and service vans. Precisely machined Torx geometry gives stable contact with TX45 fasteners, improving joint protection and reducing the risk of rounding the screw head.

Suitable for

• Automotive repairs and maintenance requiring TX45 fasteners
• Mechanical assembly and disassembly tasks with star screws
• Workshop and professional service tool sets using 3/8" drive
• Situations needing moderate reach into recessed screw positions

Key specifications

• Tip type: Torx (TX45)
• Drive size: 3/8" (square)
• Overall length: 50 mm
• Material: hardened steel (precision machined tip)
• Compatibility: designed for use with ratchets, torque wrenches and extensions that accept a 3/8" drive

How to use

Select a 3/8" drive ratchet, torque wrench or extension compatible with the socket bit. Insert the bit into the tool’s square drive until it seats securely. Engage the TX45 tip fully into the fastener head to ensure correct contact before applying torque. When using a torque wrench, set the required torque value according to the fastener and application specifications. After use, inspect the tip for wear and store in a protective tray or tool roll to maintain tip geometry.

Usage recommendations

For best results, avoid applying excessive side load and use the correct torque settings for TX45 fasteners to prevent damage to the bit and screw head. If frequent high-torque operations are required, verify material hardness and suitability for those loads and replace the bit when tip deformation becomes visible.