Genius Tools Hex Screwdriver Bit 5/16 Inch Size, 5/16 Inch Hex Shank Drive, 88mm Length, Durable Construction - 3520

Genius Tools Hex Screwdriver Bit 5/16 Inch Size, 5/16 Inch Hex Shank Drive, 88mm Length, Durable Construction - 3520 Professional Screwdriver Bit

This 5/16 inch hex screwdriver bit is built for consistent engagement, controlled torque, and dependable fitment in professional hand tool setups. With an 88mm overall length (3.46 inches), it balances reach and access while staying manageable in tight, fast-paced service work.

Constructed from High Speed Steel and heat treated for a tough outer surface and strong inner core, it’s designed to hold up under repeated use. Permanently stamped size markings support fast identification and organized storage across mixed bit sets.

Key Benefits

• 5/16 inch hex screwdriver bit with 5/16 inch hex shank drive.
• 88mm (3.46 inch) overall length supports reach without sacrificing control.
• High Speed Steel construction delivers strength, durability, and anti-corrosive properties.
• Heat-treated design provides tough exterior and strong core for longevity.
• Permanently stamped size markings simplify identification and tool organization.
• Meets or exceeds ANSI standards established by the American National Standards Institute.
• Backed by Genius Tools Limited Lifetime Warranty against manufacturer defects.

SKU 3520 is suited for technicians who need a bit that stays identifiable, resists corrosion, and maintains durability through heavy use. Its standardized hex shank drive and ANSI-aligned quality make it a practical, professional-grade choice for long-term service and shop toolkits.