【Perfect for 1/4" Bits】 The bit holder (60 mm long, 10.5 mm diameter) is compatible with all standard 1/4" bits and fits most power tools. 【Ultra-Strong Magnet for Secure Hold】 Our magnetic bit holders, equipped with an ultra-strong permanent magnet, hold bits securely without slipping. Ideal for demanding applications with cordless screwdrivers, hand drills, or impact drivers. No more lost bits! 【Durable and Corrosion-Resistant】 The high-quality stainless steel guarantees extreme resistance to breakage and rust. This ensures that the magnetic bit holders remain strong and durable, even under intensive use. They are ideal for daily use in the workshop, at home, or on the go. 【Powerful Magnetic Screwdriver and Drill Bit Set】: 5 magnetic bit holder extensions. Compatible with electric and pneumatic screwdrivers, hand drills, and most power drills and drills. Their small size makes them easy to carry and fits into many kits. 【Multifunctional and Time-Saving】: The 1/4" hex shank bit holders are suitable for impact drivers, Phillips drivers, cordless screwdrivers, impact drills, Torx drivers, and more. Whether for assembly, repair, or DIY, these ultra-strong magnetic bit holders ensure efficient work without time-consuming readjustment. Thanks to their firm grip and magnetic guidance, every screw is screwed in in a flash!