Features: Industrial grade magnetic collar bits with reinforced locking screws ensures a secure grip, eliminating slippage during high intensity tasks and providing 30% strong adhesion for iron, cobalt, and nickel materials. Engineered with high grade magnetic materials and an enlarged contact surfaces, these bits deliver enhanced magnetic output for precise handling of metal components in demanding environments. Ideal for technicians, assembly line workers, and maintenance professional requiring reliabled magnetic screwdriver bits for industrial equipment repairs and heavy duty fastening operations. Optimized for factory production lines, automotive workshops, and machinery maintenance scenarios where secure screw retention is critical for efficient metalwork and reduced rework rates. Designed specifically for ferromagnetic materials, these magnetic collar bits maintain stable clamping force even under vibrations, ensuring operational safety while handling steel screws in high torques applications. Specifications: Component: Strong magnet Size: Approx.20x12mm/0.78x0.47inch Package Includes: 1pcs Magnetic Bit Holder note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.