1.6290-NX Gas Cutting Nozzle 2.6290-NH Gas Cutting Nozzle 3.6290 Small Type Gas Cutting Nozzle 4.M Type Gas Cutting Nozzle 5.GK3 Gas Cutting Nozzle 6.G07 Gas Cutting Nozzle 7.G07-100 Natural Gas Cutting Tsui Each manufacturer makes many different types of cutting tips. Although the orifice arrangements and the tips are much the same among the manufacturers, the part of the tip that fits into the torch head often differs in design. Because of these differences, there is the possibility of having two or three different types of Cutting Torches in your kits. Make sure that the cutting tips match the cutting attachment and ensure that the cutting attachment matches the torch body. Figure 4-13 shows the different styles of tips, their orifice arrangements and their uses. The tips and sears are designed to produce an even flow of gas and to keep themselves as cool as possible. The seats must produce leakproof joints. If the joints leak, the preheat gases could mix with the cutting oxygen or escape to the atmosphere, resulting in poor cuts or the possibility of flashbacks. www.edaweld.com