Running a Miller XT40 or XT40M plasma cutting torch? You'll go through consumables (electrodes and nozzles) regularly. This pack gives you 10 pieces total: 5 electrodes (part #249926, also fits 770791, 674325) and 5 nozzles/tips (part #249928). They're rated for 40 amps, which is the standard for the XT40 torch. These are aftermarket replacements (not original Miller parts), but they're made to OEM specs, so they should fit and work just fine. Good quality consumables help maintain a clean, stable arc and cut quality. Always good to have spares on hand so you don't have to stop a job. Just make sure your torch is cool before swapping them out. If you do a lot of plasma cutting, buying in packs like this saves money compared to buying individually. Keep your torch running smoothly!