10mm Hex Shank, T-55 Tamperproof Star Bit 30mmL

Genius Tools Tamperproof Star Bit T-55 Size 10mm Hex Shank 30mm Length High Strength Steel Drive Security Bit - 7155, Security Screwdriver Bit This tamperproof star (security Torx-style) screwdriver bit is built for T-55 fasteners and features a 10mm hex shank for secure drive engagement. With a 30mm overall length, it's sized for controlled handling and straightforward access in typical bit-holder and driver setups. Made from High Speed Steel, the bit is designed for high strength, durability, and anti-corrosive performance. Heat treatment supports a tough exterior and strong inner core, while stamped sizing helps keep tool storage and identification fast and consistent. Key Benefits T-55 tamperproof star profile helps handle security fasteners with consistent fit. 10mm hex shank interfaces with compatible drivers for stable torque transfer. 30mm overall length supports access while maintaining compact, controlled handling. High Speed Steel construction provides high strength, durability, and anti-corrosive properties. Heat-treated design delivers a tough exterior with superior inner core strength. Permanently stamped size marking enables quick identification and organized storage. Designed for professional technicians, this security bit is built to stand up to heavy use while maintaining reliable performance. The combination of High Speed Steel, heat treatment, and clear size stamping helps support long-term service life and efficient workflow in professional tool organization.