1、High Conductivity: These contact tips are made of excellent brass material, ensuring good conductivity and corrosion resistance, achieving efficient and consistent welding performance. 2、Welding Effect: Use these 000068 contact tips to achieve smooth and reliable welding, providing powerful and accurate welding arcs for professional results, has strong practicality. 3、Applicable Model: These brass contact tips are suitable for Miller M‑10 M‑15 M‑25 M‑40 M‑150, for Hobart H‑9 H‑10 series MIG welding torch, or gas diffusers, which has good compatibility. 4、Standard Sizes: With exquisite workmanship, these brass welding contact tips have standard specification, with a center hole diameter of 0.035 inch, ensuring safe and reliable welding. 5、Replacement Parts: This kit includes 30 replacement contact tips, with user friendly design that is easy to install and replace, and can withstand the requirements of strict welding applications.