Wiha 71306 Hex Insert Bit 1/4 in Drive M2.5 Metric Impact

Product Description

The WIHA 71306 is a metric hex screwdriver insert bit designed for use with 1/4 inch hex drive tools. Built from steel and rated for impact use, this bit delivers reliable torque transfer in demanding fastening applications. The overall length measures 1 inch, making it compatible with standard bit holders and quick-change chucks. It is configured for M2.5 cap screws and features a standard hex fastener drive profile without a ball end. Electricians, HVAC technicians, and general trade professionals reach for this bit when working with metric fasteners on panels, equipment enclosures, and light fixtures.

The 71306 is suited for residential and commercial service work where metric hex fasteners are common. It fits any 1/4 inch hex drive bit holder, impact driver, or screwdriver handle that accepts insert-style bits. The impact rating makes it appropriate for use with pneumatic and cordless impact drivers operating at standard fastening torque ranges for M2.5 hardware. It is sold in a package quantity of 10, which suits service van stocking and shop use.

Key Features

• Impact rated for use with cordless and pneumatic impact drivers
• 1/4 inch hex drive fits standard quick-change bit holders and impact chucks
• M2.5 metric cap screw fitment for precise fastener engagement
• 1 inch overall length suits standard bit holders and extensions
• Steel construction for durability under repeated impact loads
• No ball end — positive straight engagement with fastener socket

Compatibility

Designed for use with any 1/4 inch hex drive tool or bit holder that accepts 1 inch insert-style bits, including impact drivers and manual screwdriver handles.

Installation Notes

Insert bits should be seated fully into the bit holder before applying torque to prevent slippage or damage to the fastener head. When using with an impact driver, match the torque setting to the fastener specification for M2.5 hardware to avoid stripping. Inspect the bit tip for wear before each use, and replace when the hex profile shows visible rounding. No special tools or codes are required for bit installation.