The Weldmark® by Victor® 3-GPN series Oxy-Fuel Size 2 Cutting Tip has a 1-1/2 inch cutting capacity. This general purpose 3-GPN series tip is two pieces with a spline insert. It is ideal for hand and machine torch cutting. It is compatible with CA1350/51/52, CA1260 and CA411-3 cutting attachments, and is capable of cutting 12-18 inches per minute with an average kerf width of 0.09". It's designed for use with Natural Gas or Propane, with a max Propane pressure of 9 and a max oxygen cutting pressure of 45. Oxy-Fuel cutting is a thermal cutting process utilizing oxygen and fuel gases to cut through metals such as mild steel. In this process, the torch heats the steel to its ignition temperature, after which oxygen is directed to the cutting point, burning it into a molten metal. A stream of gas blows the molten metal away from the work area, resulting in a clean cut.