The Metcal CVC-7CH0040P Connection Validation Soldering Cartridge, Power Chisel, 4.0mm, 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 700 Series heater, which is ideal for most standard applications up to 775 °F (413 °C).