The Metcal UFC-6CH9006S Ultrafine Soldering Cartridge, Chisel, 0.6mm x 9mm, 600 Series Heater, is compatible with the CV-H2-UF Ultrafine Hand-Piece, which pairs with the CV-500 and CV-5200 Soldering Systems. It is designed with a chisel geometry and 600 Series heater, which is suitable for temperature sensitive applications up to 675°F (357°C).