Wiha 71907 Torq-set Insert Bit 4 Point 6.3 Mm Hex Drive

Product Description

The WIHA 71907 is a Torq-Set screwdriver insert bit designed for use with 6.3 mm hex drive power tools and bit holders. It features a 4-point Torq-Set profile, which is required for tamper-resistant fasteners commonly found in aerospace, military, and defense applications. The bit measures 25 mm (1 inch) in overall length and is manufactured from steel for durability under repeated torque loads. This insert style bit seats directly into a compatible 6.3 mm hex drive chuck or bit holder, making it suitable for both hand-operated and power-assisted applications where Torq-Set fasteners are present.

This bit is used wherever Torq-Set fasteners are specified, including aerospace assemblies, avionics panels, and military equipment maintenance. The 4-point Torq-Set profile is not interchangeable with Phillips or Pozidriv fasteners and requires a dedicated Torq-Set driver. Technicians performing field service, depot-level maintenance, or production assembly on equipment with Torq-Set hardware will find this insert bit compatible with standard 6.3 mm hex drive bit holders and power screwdrivers.

Key Features

• 4-point Torq-Set profile for tamper-resistant fastener applications
• 6.3 mm hex drive fits standard bit holders and power tool chucks
• 25 mm (1 inch) overall length in compact insert format
• Steel construction for durability under repeated torque loads
• Sold in a package quantity of 10 individual bits

Compatibility

Designed for use with 6.3 mm hex drive bit holders, power screwdrivers, and manual drivers that accept standard insert bits. Fits any tool platform that accepts 6.3 mm hex shank insert bits. Intended for use with Number 4 Torq-Set fasteners only.

Installation Notes

Insert the bit fully into a compatible 6.3 mm hex drive bit holder before applying torque. Confirm the Torq-Set point size matches the fastener head before driving to avoid fastener damage or bit slippage. Depressurize, de-energize, or otherwise safe the equipment being serviced before accessing fasteners in sensitive assemblies. Inspect bits for wear or chipping before each use and replace worn bits to maintain proper fastener engagement.