293040 / 5/16in Hex Shank, 4mm Hex Screwdriver Bit 30mmL

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. Designed and made for professional technicians, this bit focuses on longevity, reliable fitment, and easy size recognition.