Versatile Screw Bit Set: 36-piece set offering a comprehensive selection of screwdriver bits for a broad range of tasks with security screws specialty heads and standard fasteners High-Quality 6150 CrV Steel: Made from hardened chrome vanadium steel for lasting durability and wear resistance black oxide coating provides extra rust protection Extra-Long 75 mm Shaft Length: Facilitates access to deep or hard-to-reach areas for device maintenance electronics and DIY projects in tight spaces Compatible with Tamperproof Security Screws: Includes Security Torx Square XZN and triple-security bits ensuring reliable fastening solutions for secured and specialized applications Diverse Fastening Tasks: A choice for DIY enthusiasts professionals or as an addition to any toolbox robust and practical for everyday repairs and maintenance, Manufacturer: Hi-Spec Products