gtr777HCD-GTR777, GTR888: E2, E51, AR 4-265-401-0[] Soldering irons using a temperature regulator should be set to HCD-GTR777, GTR888: MX 4-265-401-2[] about 350 °C. Caution:O F Soldering ironsUusing aO M joint forM D HCD-GTR777, GTR888: E2, E51, AR Ã O 4-265-401-0[] U M G R applied to the solder R O a slhtly longer time. Ã U M G R O R M