DC Copperclad Gouging Electrode, 1 2 in dia x 17 in L, Jointed ORS NASCO Exhale valve lets workers breathe Exhale valve lets workers breathe easy and stay cool Dura Mesh® shell resists collapsing in heat and humidity Molded nose bridge seals easily without a metal noseband Facepiece is naturally contoured for less pressure Straps are securely attached so they don’t break at the seal stores and protects hose improving efficiency Brass NPT swivel inlet machined from solid Factory matched cartridge style lubricated spring motor Multi position locking ratchet secures hose at desired length Guide arm adjusts for wall Full synthetic graphite Superb arc starting and stability