The Metcal SMTC-163 SMTC 700 Series Soldering Cartridge with Dual Heater, 1.8 in. (45.5 mm), Blade, is designed for reworking SMT components, providing excellent performance during assembly, removal and cleaning. It is suitable for use with the MX-500, MX-5000, and MX-5200 Systems, and with the MX-RM3E, MX-RM6E,and MX-H1-AV Solder Hand Pieces. The cartridge is equipped with dual 700 Series heaters, which are ideal for most standard applications.