Gas soldering iron pyropen butane gas powered soldering iron self ignition piezo filling capacity 28 ml temperature range soldering 350c500c hot air 650c standard content chisel shaped tip 3 0 mm hot air nozzle 4 9 mm heat deflector gas refill cartridge 0 75 ml metall box heat resistant accessory case net weight 100 g soldering technique hard soldering min temperature 350 c max temperature c 500 c power 80 watt power supply gas cartridg