Genius Tools Screwdriver Bit 5/16 Inch Hex Shank #4 Phillips Drive 125mm Length Durable Steel - 1604

Genius Tools Screwdriver Bit 5/16 Inch Hex Shank #4 Phillips Drive 125mm Length Durable Steel - 1604 Professional Screwdriver Bit

This professional screwdriver bit is built for consistent engagement with #4 Phillips fasteners and a secure 5/16" hex shank connection. The 125mm overall length helps balance reach and control while maintaining stable driving feel during heavy use.

Manufactured from High Speed Steel and heat treated for long-term durability, it also features stamped size markings for quick identification in a toolbox or drawer. The design meets or exceeds ANSI standards and is backed by the Genius Tools Limited Lifetime Warranty against manufacturer defects.

Key Benefits

• 5/16" hex shank provides a solid fit in compatible holders and drivers.
• #4 Phillips drive profile supports accurate fastener engagement and reduced slippage.
• 125mm (4.92") overall length balances reach, visibility, and handling control.
• High Speed Steel construction delivers high strength with anti-corrosive properties.
• Heat-treated design creates tough exterior durability with strong inner core.
• Size is permanently stamped for faster selection and better tool organization.
• Meets or exceeds ANSI standards for dependable performance and consistency.

SKU 1604 is designed for professional technicians who need a durable, clearly marked bit that holds up over repeated service. Its material choice, heat treatment, and standards compliance focus on longevity and reliable fit, helping keep work consistent across demanding shop conditions.