Wiha 71941 Hex Insert Bit 1/4 in Drive M3 Impact Rated 10pk

Product Description

The WIHA 71941 is a metric hex screwdriver insert bit designed for use in 1/4 inch hex drive power tools, impact drivers, and bit holders. Built from steel with an impact-rated construction, this bit is suited for high-torque applications where standard bits would fail or strip. At 1 inch overall length, it fits standard bit holders and quick-change chucks without extension. The M3 cap screw size designation makes it a go-to for metric fastener work across electrical, mechanical, and light fabrication applications. This listing covers a pack of 10 bits, making it practical for stocking a service truck or tool bag.

This insert bit is used wherever 1/4 inch drive hex tooling is required for metric M3 fasteners. Common applications include panel assembly, electrical enclosure work, HVAC equipment service, and light mechanical work on equipment that uses M3 hex socket cap screws. The impact-rated rating means it can be run in cordless impact drivers without risk of premature shatter or torsion failure. Installers and service technicians who work with metric hardware regularly will find this bit useful as a direct consumable replacement.

Key Features

• Impact-rated steel construction handles high-torque impact driver use
• 1/4 inch hex drive fits standard quick-change bit holders and impact drivers
• 1 inch overall length suits standard bit holders without extension
• Metric M3 cap screw sizing for precision metric fastener applications
• Pack of 10 bits for convenient restocking and service truck supply
• No ball end design for straightforward insert and drive in accessible fastener locations

Compatibility

Designed for use with any 1/4 inch hex drive quick-change bit holder, impact driver, or screwdriver handle accepting standard 1 inch insert bits. Sized for M3 metric hex socket fasteners.

Installation Notes

This insert bit is installed by trades and technicians using 1/4 inch hex drive power tools or manual bit holders. Ensure the bit is fully seated in the chuck or holder before applying torque. Impact-rated bits are compatible with cordless impact drivers, but always confirm the fastener and joint type can tolerate impact torque before use. Replace bits showing signs of wear, rounding, or cracking to avoid fastener damage.