The Weller XNTGW 0054485499, Gull Wing Solder Tip, features a 3mm x 2mm Tip Diameter, solid copper plated with iron all over, and nickel and chromium behind the working surface. The 0054485499 is designed to provide maximum heat transfer from the heater to the tip and is individually bagged. Meant for use with the WXP65 Iron.