ER4043 TIG Welding Rod, Aluminum, 1 8 in dia, 36 in L, 10 lb Tube no checkout injection molded PVC boots are 100% injection molded PVC boots are 100% waterproof TDT outsole compounds are formulated for long wear and slip resistance Includes removable and washable contour cushion insoles Steel toe protection Curved jaw puts tremendous pressure on four points of any style nut or bolt head Includes convenient wire cutter Constructed of high grade heat treated alloy steel for maximum toughness and durability Guarded release trigger quickly unlocks and protects from accidental release Turn screw to adjust pressure and fit One of the oldest and most widely used welding and brazing alloys Contains silicon additives which result in improved fluidity (wetting action) of the weld pool Also produces a weld less sensitive to cracking Can be used to weld various grades of aluminum