Description: 【Material】: This welding positioning magnetic is made of metal,which is not only exceptionally magnetic but also resistant to high temperatures, ensuring durability and reliability during intense welding operations 【Feature】: Designed for positioning, it ensures that the drill bit is welded on the same circle, enhancing cutting sharpness and improving overall welding 【Adjustable Gap Settings】: Featuring four adjustable positions (a=0.5mm, b=0.75mm, c=1mm, d=1.25mm), this tool allows you to customize the internal gap size according to your specific needs, making it versatile for various diameters 【Reusable and Scientific Design】: With its scientifically designed structure offering four different gap sizes, this magnetic is suitable for all diameters and can be reused multiple times without losing effectiveness 【Stainless Steel Construction】: Made from stainless steel with dimensions of 42x14x11mm, this product promises longevity and resistance against corrosion while maintaining a clean surface for optimal performance in every use Specification: Material: Stainless Steel Size Chart: 4.2cmx1.4cmx1.1cm/1.65inchx0.55inchx0.43inch Package Includes: 1x welding positioning tool Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.