Wera 05066491001 Torx Insert Bit T40 1/4 Inch Drive

Product Description

The WERA 05066491001 is a T40 Torx insert bit designed for use with 1/4 inch hex drive screwdrivers, bit holders, and power tool chucks. This insert bit delivers reliable torque transfer on T40 Torx fasteners commonly found in HVAC equipment panels, electrical enclosures, and mechanical assemblies. The compact insert format fits standard 1/4 inch magnetic bit holders and quick-release chucks. At 0.01 pounds, it is lightweight and easy to carry as a spare in a service kit. Built for professional technicians who need a precise, secure fit on Torx fasteners during routine service and installation work.

This T40 Torx insert bit suits residential and commercial service applications where T40 Torx fasteners are specified. Typical use cases include equipment panel removal, motor mounting hardware, and access cover fasteners on HVAC, electrical, and mechanical systems. The 1/4 inch hex shank is the industry-standard drive size, making this bit compatible with virtually any bit holder or driver used in the trades.

Key Features

• T40 Torx end type for secure engagement on T40 fasteners
• 1/4 inch hex drive shank fits standard bit holders and quick-release chucks
• Insert bit format for use in magnetic holders, extension bars, and power drivers
• Lightweight at 0.01 pounds for easy storage in a service pouch or bit kit
• Sold individually - single piece per package

Compatibility

Designed for use with any 1/4 inch hex drive bit holder, screwdriver handle, or power tool chuck that accepts standard insert bits.

Installation Notes

Insert bits are installed and removed by hand into a compatible 1/4 inch magnetic or quick-release bit holder - no tools required. Ensure the bit is fully seated in the holder before applying torque to avoid cam-out or fastener damage. Do not use insert bits without a proper holder or extension, as direct contact with the drive tool is required for safe operation. Inspect the bit tip for wear before each use and replace if the Torx lobes show rounding.