Genius Tools Hex Screwdriver Bit 4mm Size 5/16 Inch Hex Shank 30mm Length Durable Steel - 2144

Genius Tools Hex Screwdriver Bit 4mm Size 5/16 Inch Hex Shank 30mm Length Durable Steel - 2144 Professional Screwdriver Bit

SKU: 2144. This 4mm hex screwdriver bit is built for controlled fastening with a 5/16 inch hex shank and a compact 30mm overall length (1.18 inches). The short profile helps maintain stability and access when working in confined areas.

Made from High Speed Steel and heat treated for a tough exterior with a strong inner core, it is designed to hold up under heavy professional use while offering anti-corrosive properties. The size marking is stamped for fast identification during tool organization.

Key Benefits

• 4mm hex screwdriver bit with 5/16 inch hex shank for secure fit.
• 30mm (1.18 inch) overall length supports control in tight spaces.
• High Speed Steel construction provides strength, durability, and anti-corrosive properties.
• Heat treated for a tough exterior and superior inner core strength.
• Size is permanently stamped for quick identification and better tool organization.
• Meets or exceeds ANSI standards for quality and consistency.
• Backed by Genius Tools Limited Lifetime Warranty against manufacturer defects.

Designed and made for professional technicians, this bit focuses on longevity, reliable fitment, and easy size recognition. Its heat-treated High Speed Steel build supports repeated use, while ANSI compliance and warranty coverage add confidence in consistent performance over time.