This alumina ceramic cup provides excellent gas coverage for TIG welding applications. The #5 size (8mm diameter) offers good visibility while maintaining shielding effectiveness. The 46.8mm length helps protect tungsten in deep joints. Fits all standard WP17 and WP18 style TIG torches. The smooth interior surface promotes laminar gas flow. Withstands high temperatures without cracking or degrading. Ideal for stainless steel and aluminum welding where contamination must be minimized. The white color provides good contrast for improved tungsten visibility. Each cup is individually inspected for dimensional accuracy and surface finish quality.