With its lightweight and portable design, this tool set is easy to carry and store, making it a practical for repairs and maintenance work Crafted from high strength steel, these bit holders boast 1 / 4inch quick Changing hexagonal handle, ensuring compatibility with a wide electric drill and screwdriver Perfect for home, automotive repair, electrical installations, and industrial assembly, this bit holder set is essential for reaching confined areas Ideal for professional technicians, enthusiasts, electricians, and installers who require to tackle complex tasks with ease Enhances your toolkit with our Bit Holder Set, four extension lengths ( 60mm, 75mm, 100mm, 150mm) suitable for easy access to tight space and efficiency during projects