1. []The flexible drill bit extension is compatible with both hand electric drills and standard electric drills, ensuring perfect performance for any project. Its ability to bend, twist, and turn makes it ideal for reaching tight and confined spaces. 2. [Precise Size Specifications]This flexible drill bit extension features a hexagonal shank connector measuring 6.35mm (1/4 inch) and an internal hexagonal head connector of the same size, making it a reliable choice for various tasks that require precision. 3. [ Material Construction]Made from high-quality plastic and a steel alloy hexagon head, this flexible drill bit exceptional durability and processing accuracy, ensuring that every job is completed effectively and efficiently. 4. [ Design]With its universal applicability in any direction, the flexible screwdriver extension allows you to easily access difficult spots, streamlining your workflow. Its compact size also ensures convenient storage in your toolbox or pocket.