Wiha 72508 Hex Insert Bit 1/4 in Drive 9/64 Hex 30 Pc

Product Description

The WIHA 72508 is a 9/64 inch hex screwdriver insert bit designed for use with standard 1/4 inch drive bit holders, handles, and power tool adapters. The bit measures 25mm overall length (OAL) and is supplied in a 30-piece set, making it well suited for shop inventory or job-site kits where high-cycle use depletes bits quickly. This insert bit does not feature a ball end, so it requires full engagement with the fastener head before driving. Electricians, HVAC technicians, and general tradespeople commonly use 9/64 inch hex bits when working with set screws, panel fasteners, and equipment access hardware.

This bit is a direct-drive insert format compatible with 1/4 inch hex bit holders found in cordless drills, impact-rated adapters, and manual screwdriver handles. The 30-piece pack quantity supports tool crib stocking, fleet maintenance kits, and service van replenishment where individual bit replacement is routine. The short 25mm OAL suits compact driver handles and inline power tools with limited bit clearance.

Key Features

• 9/64 inch hex drive size for set screws and hex socket fasteners common in trade equipment
• 1/4 inch drive shank fits standard bit holders, magnetic extensions, and quick-change chucks
• 25mm overall length designed for compact bit holders and inline drivers
• No ball end — full-depth seating required, reducing cam-out in high-torque applications
• 30-piece pack quantity supports stocking and bulk replacement needs

Compatibility

Designed for use with any standard 1/4 inch hex bit holder, including manual screwdriver handles, magnetic bit extensions, and power tool bit adapters accepting 1/4 inch insert-style bits.

Installation Notes

Insert bits should be fully seated in the bit holder before applying torque to prevent slipping or fastener damage. Verify the hex size matches the fastener socket before driving to avoid rounding out set screws or cap heads. Replace worn or deformed bits promptly, as damaged bits increase the risk of fastener damage and injury. No special tools or certifications are required for bit changeover.