The Metcal STTC-803 STTC 800 Series Soldering Cartridge, 0.11 x 0.34 in. (2.8 x 8.6 mm), 90 Degree Chisel, is highly durable and ideal for through-hole and SMD Rework. It is designed for use with the MX-500, MX-5000, and MX-5200 Systems, and with the MX-RM3E, MX-RM6E, MX-H1-AV, and MX-H7-SF Solder Hand Pieces. The cartridge is equipped with the 800 Series heater, which is ideal for most ceramic and higher thermal demand applications applications.