Genius Tools Hex Power Bit 4mm Size, 5/16 Inch Hex Shank, 72mm Length, Durable Construction – 297240

Genius Tools Hex Power Bit 4mm Size, 5/16 Inch Hex Shank, 72mm Length, Durable Construction – 297240 Professional Power Screwdriver Bit

This 4mm hex power screwdriver bit is built for professional tool setups that require consistent fit, dependable torque transfer, and long service life. It features a 5/16 inch hex shank and a 72mm overall length for controlled reach in common power driving applications.

Constructed from high speed steel and heat treated for durability, the bit is designed to resist corrosion while maintaining a tough exterior and strong core. Size markings are stamped for quick identification when organizing bits by drive type and dimension.

Key Benefits

• 5/16 inch hex shank provides secure hold and efficient torque transfer.
• 4mm hex power bit profile supports precise engagement and reduced cam-out.
• 72mm overall length adds reach while maintaining stable, controlled driving.
• High speed steel construction offers strength, durability, and anti-corrosive properties.
• Heat-treated design delivers tough exterior with superior inner core strength.
• Stamped size marking enables fast identification and cleaner tool organization.
• Meets or exceeds ANSI standards for quality and professional-grade performance.

SKU 297240 is backed by the Genius Tools Limited Lifetime Warranty against manufacturer defects. Designed for professional technicians, it’s made to perform over a lifetime of heavy use, while keeping selection and storage simple through permanent size identification.