Using the Hypertherm SmartSYNC Hand Torch is easy. When you need to change consumables, just use the simple twist - on installation method. There's no need to go back to the power supply, saving you time. When using, make sure to adjust the power and amperage according to your application using the controls on the handheld model. For maintenance, keep the torch clean and check the consumables regularly for wear and tear. If you notice any issues, it's best to replace the consumables promptly to keep the torch working well.