Experience precision and durability in your TIG welding projects with the Alumina Standard TIG Cup from Weldmark by CK Worldwide. Designed for compatibility with torch series 17, 18, and 26, this cup features a 5/16 inch (0.3125) opening, making it ideal for a variety of welding applications. Constructed from high-quality alumina, it offers standard diameter and length, ensuring optimal performance and reliability during the GTAW process. Whether you're a professional welder or a DIY enthusiast, this cup is an essential addition to your welding consumables, providing the quality and efficiency you need for successful welds.