General description The CSPARKV 1/4' Drill Bit Extension Set includes two flexible extension rods and three quick change magnetic bit holders. This versatile tool is designed to enhance your drilling experience, allowing you to work in tight spaces with ease and efficiency. Technical specifications Extension rod diameter: 6.35mm Bit holder sizes: 60mm, 100mm, 150mm Compatibility and accessories Compatible with small wrenches Works with cordless screwdrivers Suitable for low-speed DC hand drills Compatible with torque drills Works with electric screwdrivers Usage Ideal for use in electrical cabinets Perfect for furniture assembly Useful for working on electrical appliances Designed for narrow space applications Other information Flexible, bendable, and rotatable extension rod for various angles Premium plastic housing for hand protection Durable metal inner rod with a large adjustable angle Built-in magnet in bit holders to keep bits secure Locking mechanism with automatic pop-up batch