Lincoln Electric. Metalshield MC-6. ED030392. Diameter: .045 inch. 1.1 MM. 33 pound steel spool. AWS: E70C-6M H4, E70T15-M20A4-CS1-H4, E70C-6M-H4, MC-6. AWS E70C-6M H4. Top Features: Excellent performance in fast follow, high travel speed applications. Optimal wetting action, even at low voltages. H4 diffusible hydrogen level. Use with Rapid-Arc Waveform Control Technology. Deoxidizing arc action minimizes pre-weld work. Typical Applications: Robotics/ Hard automation. Automotive. Structural fabrication. Process piping and pressure vessels. General fabrication. Welding Positions: All. Shielding Gas: Mixed Shielding Gas.