These Pro Spot shunting pliers provide an additional current path between panels during spot welding for a better weld. Non-conductive coatings on steel, such as E-Coat (a corrosion-resistant primer applied to parts by the manufacturer) inhibit the completion of the spot weld. The E-Coat on the mating surfaces can be saved when using STRSW with the use of the Pro Spot Shunting Pliers.