The additional thoria provides about 20 percent higher current carrying capacity
When AC welding balling can be accomplished by welding with DC electrode positive prior to welding with AC
During AC welding the balled end does not melt and so emission is not as good as from a liquid ball on an EWP

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Width : 0.6 inch
Height : 0.05 inch
Length : 7.2 inch

Item Weight: 0 ounce (View shipping rates and policies)
Shipping Weight: 1.4 pounds (View shipping rates and policies)

ASIN : B00F42A2RA