ER70S 6 MIG Welding Wire, Carbon Steel, 0.035 in dia, 44 lb Spool ORS NASCO Cotton construction is breathable and Cotton construction is breathable and decreases hand fatigue Gunn cut pattern delivers excellent durability Upper and lower tongs are made from a high copper alloy for maximum conductivity and strength Top and bottom tip insulators are a molded fiberglass compound and will withstand intensive heat impact Handles are molded from a durable glass filled nylon material with a good heat and impact resistance Oval point screw cable connection is standard on all models or rusty steel Creates a smooth bead appearance resulting in minimal post weld grinding Provides porosity free High quality welds when used on dirty