The Metcal CVC-9CH0035S Connection Validation Soldering Cartridge, Chisel, 3.5mm, is Connection Validation enabled to ensure an excellent solder joint. It is designed for use with the use with MX-RM3E, MX-RM6E, MX-H1-AV, MX-H7-SF and CV-H1-AV, CV-H7-AV hand-pieces. It is compatible with the MX-500, MX-5000, MX-5200 and CV-5200, CV-500 Systems. The soldering cartridge is equipped with a 900 Series heater, which is ideal for ceramic and high thermal demand applications up to 925 °F (496 °C).