1. The butterfly screw can be easily turned by hand, ensuring efficient and safe product usage 2. It is suitable for various welding tasks and is used to securely connect with the welder grounding wire, helping to improve the welding effect 3. Made of high quality materials, it has excellent performance and a long service life 4. Compact and small in size, it is easy to carry and can be used anywhere 5. Excellent magnetic performance, suitable for various iron and steel materials, capable of meeting various welding needs 6. Thickened copper wire core, stable and safe conductive performance 7. Weight: small: about 62g; large: about 100g
