1. Screwdriver bit magnetizer, enhanced endurance through magnetization, wide compatibility 2. It can restore the magnetism of the demagnetized bit after long-term use 3. Molded magnetizer, specially designed for small precision screws, offering optimal magnetization strength 4. Outer diameter 7.6mm, inner diameter 3.4mm, thickness 2.3mm 5. Suitable for most screwdriver bits on the market 6. Package includes: 10 x Magnetizer