Esab Dual Shield 810X-NI1 description: Dual Shield 810X-Ni1 provides outstanding operator appeal with an easily controlled arc, improved operation at both lower and higher current levels, minimal spatter and easily removed slag. Dual Shield 810X-Ni1 is designed for use with 100% CO2. It is an excellent choice for welding on COR-TEN steel in applications where weathering grade wires are not desirable.