1/4in Hex Shank, 4mm Hex Screwdriver Bit 30mmL

Genius Tools Hex Screwdriver Bit 4mm Size 1/4 Inch Hex Shank 30mm Length Precision Drive Durable Steel - 4134 Professional Screwdriver Bit SKU: 4134. This 4mm hex screwdriver bit uses a 1/4in hex shank and a compact 30mm overall length for controlled driving in tight or recessed fastener locations. Sizes are stamped on the bit for quick identification and cleaner tool organization in the shop or field. Made from High Speed Steel, the bit is built for strength, durability, and anti-corrosive performance. Heat treatment adds a tough exterior with a strong inner core, supporting long-term professional use while meeting or exceeding ANSI standards. Key Benefits 1/4in hex shank fits standard bit holders and quick-change adapters. 4mm hex tip supports precise fit for consistent, controlled driving. 30mm overall length helps access tight spaces without excess reach. High Speed Steel construction delivers strength with anti-corrosive properties. Heat-treated design provides tough exterior and strong inner core durability. Stamped size marking improves identification and keeps tool storage organized. Meets or exceeds ANSI standards for dependable professional-grade performance. Built for professional technicians and demanding daily use, this screwdriver bit balances compact size with durable construction.