Wiha 71329 Hex Insert Bit 1/4 in Drive 1/2 in Hex Impact Rated

Product Description

The WIHA 71329 is a hex screwdriver insert bit designed for fast, reliable fastener driving in trade and industrial applications. Built from steel and impact rated, this bit handles the torque demands of power tools without premature wear or breakage. It features a 1/4 inch drive connection, a 1/2 inch hex profile, and an overall length of 1 inch. HVAC technicians, electricians, plumbers, and general contractors use insert bits like the 71329 when working with impact drivers or bit-holder extensions in tight or repetitive fastening situations. The compact 1 inch length suits inline bit holders and quick-change chucks commonly found on the job site.

The 71329 is suited for standard hex fasteners in residential and commercial construction and mechanical service work. It fits 1/4 inch drive quick-change bit holders and impact-rated extensions. Common applications include equipment panel assembly, conduit bracket installation, equipment mounting, and general mechanical fastening where a 1/2 inch hex drive is required. The impact-rated construction makes it appropriate for use with cordless impact drivers as well as standard drill-drivers.

Key Features

• Impact rated steel construction handles high-torque power tool applications
• 1/4 inch drive fits standard quick-change bit holders and impact extensions
• 1/2 inch hex profile for standard hex fastener drive
• 1 inch overall length suits inline holders and compact drive setups
• Standard hex fastener type — no ball end, straight engagement for positive fitment

Compatibility

Designed for use with 1/4 inch drive quick-change bit holders, impact drivers, and drill-drivers requiring a 1/2 inch hex insert bit.

Installation Notes

Insert bits should be seated fully into the bit holder before applying torque. Verify the quick-change chuck is locked before operating the tool. Inspect the bit for wear or deformation before each use, particularly after high-torque impact applications. Replacement is recommended at first sign of rounding or cracking to prevent fastener damage.