Features: Magnetic bit holder, featuring a robust carbon steel alloy constructions and magnetic tips for secure bit holding. This drill bit extension is 300mm(12'') long with a 1/4 inch hex shank design, ensuring compatibility with most cordless screwdrivers and electric manual screwdrivers. Suitable for home improvement enthusiasts and professional tradespeople, the bit holder caters to anyone seeking precision and efficiency in their work. Whether you're reaching into tight spaces or tackling complex assemblies, these bit holders provide the necessary reach and stability for any project. With a strong magnetic grip and a locking mechanism, this bit holder set ensures that your bits stay in place, delivering a seamless and stable experience during all your constructions and repair tasks. Specifications: Material:Carbon Steel Length:Approx.300mm/11.81'' Handle: 1/4" Hexagonal Handle (6.35mm) Package Includes: 1Piece Magnetic Bit Holder note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.