Size 0, Oxy-Acetylene Cutting Tip, Victor Compatible, Features Copper Shells Machined From Solid Bar Stock Not Tubing, Thick Shell Flange, Extra Heavy Duty Shell End Where The Tip Takes The Most Abuse, Larger Diameter Decreases Preheat Time & Maintains The Cut On Painted Or Rusty Plates, Course "V" Splines Which Cuts Better, Resists Clogs & Makes Cleaning Easier.