COMPREHENSIVE COLLECTION - This extensive magnetic security bit set includes a variety of tools: hex allen keys, torx, nut drivers, phillips, square, star, and more, complemented by a ratchet wrench and quick-release extensions ORGANIZED STORAGE - Securely packed in a robust case with labeled slots, ensuring organized storage and effortless transportation, featuring double drivers, cross tip, and clutch drive in one kit WIDE COMPATIBILITY - Equipped with a 1/4 magnetic extension, this set is fully compatible with electric screwdrivers, manual tools, hand drills, pneumatic tools, and tools with various holders EASY IDENTIFICATION - Each drill bit is clearly marked for effortless identification, offering a wide range of sizes, from small slotted tools to hex drivers, meeting all your screwdriver requirements DURABLE MATERIAL - Crafted from chrome vanadium steel (CR-V), the Ultimate Screwdriver Bit Set guarantees exceptional durability, making it ideal for use with impact drivers and wrench accessories COMPATIBILITY NOTICE -- Please note that the 25-piece 1-inch screwdriver bits are not compatible with the products in the tool kit. These bits require a Mini Precision Screwdriver handle, which is not included in the current tool kit The Ultimate Precision Screwdriver Bit Set is your go-to solution for all DIY and professional needs. With 260 premium pieces, including hex, torx, nut drivers, and more, it covers all screwdriver requirements. Designed for maximum convenience, it offers an organized case with labeled slots for easy storage and portability. Made from durable chrome vanadium steel (CR-V), it’s compatible with electric screwdrivers, hand drills, and other tools, ensuring versatility and longevity for any task.