Lincoln Caliber 17 18 26 Series TIG Torch Expendables Kit 1 16" 1 8" KP4760 HD Switches while 9ST10812 110 is the orderable Orderable SKU 9SL12164 10 while 9ST10812 110 is the orderable SKU used for this listing GMAW of aluminum with argon shielding: Aluminum MIG welding requires pure argon at precise flow rates (typically 25–40 CFH depending on nozzle size and travel speed) Wide Range of Application Use Kits include a range of Expendable and Tungsten diameter sizes to offer versatility in the applications they can be used for Easily Replaceable Expendable kit contents information is included inside each Expendable Kit to make it easy to replace parts once they wear out