Chisel Solder Cartridge 30° 1.78mm x 9.9mm (.07" x .39"). Features and Benefits: STTC Cartridges provide a wide range of options for through-hole and SMD Rework. For use with the MX-500 and MX-5000 & MX-5200 Systems and with the MX-RM3E and MX-H1-AV Hand-pieces. 700 Series for most standard applications.