Madworks Tungsten Steel Engraver Chisel. Handle is not included. High Ductility Steel material. This chisel is used for carving your own panel lines into plastic models. 0.4mm Chisel. Can use on Plastic, ABS, PVC, Polyester Resin, Epoxy Resin. Do not use this to scribe on metal. Recommend using Madworks MH01 Multi-function Handle with the chisel.