Universal Compatibility Flexibility: Designed to work with a wide range of power tools thanks to the 1 or 4 Inch Hex Shank, this set offers unmatched versatility in various applications. Quick Release Ease-of-Use: The Quick Release function streamlines bit changes, saving you time and effort, especially when working on complex projects. Built-in Magnetism Security: The Magnetic Bit Holder keeps bits firmly in place, reducing wobble and ensuring precise drilling in tight spots. Durable andamp Shock Resistant: Constructed from chrome vanadium steel, these bits can withstand the rigors of daily use and maintain their shape under pressure. Portable andamp Lightweight: Easy to transport and store, this set is a handy companion for both professional and personal use. Elevate your tool collection with our Magnetic Bit Holder Extension Bar Set, tailored for demanding tasks. With its heavy-duty structure and chrome vanadium steel composition, these bits are built to last. The 1 or 4 Inch Hex Shank ensures universal compatibility, making it an essential for any tradesperson's toolbox. The built-in magnetism and Quick Release mechanism offer safety and efficiency, while its portable nature ensures it's always ready when you need it most. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.