Genius Tools Hex Screwdriver Bit 3mm Size, 5/16 Inch Hex Shank, 30mm Length, Precision Fit, Durable Construction - 2143

Genius Tools Hex Screwdriver Bit 3mm Size, 5/16 Inch Hex Shank, 30mm Length, Precision Fit, Durable Construction - 2143 Professional Screwdriver Bit

This 3mm hex screwdriver bit is built for precise fastener engagement and dependable performance in professional hand tool setups. With a 5/16 inch hex shank and 30mm (1.18 inch) overall length, it fits compatible bit holders and drivers while keeping access tight and controlled.

Manufactured from High Speed Steel and finished with heat treatment, it combines a tough exterior with a strong inner core for long-term durability. Stamped size markings support fast identification during tool organization and routine work.

Key Benefits

• 3mm hex screwdriver bit profile supports accurate fit and consistent engagement.
• 5/16 inch hex shank integrates with compatible holders and professional drivers.
• 30mm overall length (1.18 inches) balances reach with stable control.
• High Speed Steel construction delivers strength, durability, and anti-corrosive properties.
• Heat treated for a tough exterior and superior inner core strength.
• Size is stamped for permanent, easy identification during tool organization.
• Meets or exceeds ANSI standards and includes Limited Lifetime Warranty coverage.

Designed and made for professional technicians, this bit is built to perform over a lifetime of heavy use. The combination of High Speed Steel, heat treatment, and clear stamped sizing helps maintain reliable results while keeping your bit set organized and easy to manage.